The study of spined things, in particular sea urchins, and the resultant impact on taxonomy.
achromacyte
achromacyte
noun
(cytology) Any cell that lacks its normal pigmentation (especially an erythrocyte that has ruptured and lost its haemoglobin)
acrocephaly
acrocephaly
noun
The condition of suffering from a pointed skull.
acronychous
actinophrys
aerophysics
aerophysics
noun
(physics) The physics of the design and construction of aerodynamic devices
alcoholysis
alcoholysis
noun
(organic chemistry) Solvolysis using an alcohol.
alcoholytic
alcoholytic
adj
Relating to alcoholysis
allopsychic
allopsychic
adj
(psychology) Relating to the relationship between the mind and the outside world
amphichromy
amphictyons
amphictyons
noun
plural of amphictyon
amphictyony
amphictyony
noun
A religious foundation or co-operative shared between Greek city states during the classical period, typically to support the temple or cult of a deity shared by the city states. Also used academically to refer to similar arrangements in non-Greek cultures.
amphoricity
amphoricity
noun
(rare) The quality of being amphoric.
amyosthenic
amyosthenic
adj
Of or relating to amyosthenia.
noun
(medicine) A drug or agent that depresses muscular action.
amyotrophic
amyotrophic
adj
(medicine) Characterized by amyotrophy (atrophy of the muscles)
anchylosing
anchylosing
verb
present participle of anchylose
angelomachy
angelomachy
noun
(rare) A battle between angels.
anhemolytic
anthecology
anthecology
noun
(biology) The study of the relationships between flowers and pollinators
anthocyanin
anthocyanin
noun
(botany, organic chemistry) Any of many water-soluble red to violet plant pigments related to the flavonoids (more noticeable in autumn after the chlorophyll decomposes)
anthypnotic
anthypnotic
adj
Alternative form of antihypnotic
aphanomyces
apocryphate
apocynthion
apocynthion
noun
(astronomy) The point in an orbit around the Moon that is most distant from that body.
arachnology
arachnology
noun
The study of the Arachnida.
archaeocyte
archaeocyte
noun
Synonym of amoebocyte
archaeology
archaeology
noun
The study of the past by excavation and analysis of its material remains:
the academic subject; in the USA: one of the four sub-disciplines of anthropology.
the actual excavation, examination, analysis and interpretation.
the actual remains together with their location in the stratigraphy.
archikaryon
archmockery
archosyrinx
arthrectomy
arthrectomy
noun
(surgery) excision of a joint
arthrodymic
arthrodynic
arthrodynic
adj
Of or relating to arthrodynia.
arthroscopy
arthroscopy
noun
the examination of the interior of a joint (such as the knee) using an arthroscope
ascophyllum
autocephaly
autocephaly
noun
(Christianity) The condition where a church's leaders have severed ties to a larger body and thus no longer report to a higher authority.
autochthony
autochthony
noun
An aboriginal condition or state.
autopsychic
autopsychic
adj
(psychology) Relating to the perception of one's own mind
bathochromy
bathychrome
bathycolpic
bathycolpic
adj
Alternative form of bathukolpic
bathysophic
behypocrite
biophysical
biophysical
adj
of or pertaining to a combination of biology and physics
of or pertaining to biophysics
biorhythmic
biorhythmic
adj
Of or pertaining to biorhythms.
blastochyle
blastochyle
noun
(anatomy) The clear or shiny colorless fluid in the blastodermic vesicles.
bodychecked
bodychecked
verb
simple past tense and past participle of bodycheck
bostrychoid
bostrychoid
adj
(botany, of buds) arranged in a helical manner on the outside of a long, tapering, conical rachis
brachiotomy
brachydomal
brachyurous
brachyurous
adj
(zoology) brachyural
brochophony
bronchially
bronchially
adv
In a bronchial way.
bronchotomy
bronchotomy
noun
(surgery) An incision into the windpipe or larynx, including the operations of tracheotomy and laryngotomy.
calcography
calcography
noun
(art) drawing with chalk
calophyllum
calycophora
cameography
campholytic
cannonarchy
canthectomy
canthectomy
noun
The surgical removal of tissue at the junction of the upper and lower eyelids.
cantholysis
cantholysis
noun
The surgical division of the canthus.
carbethoxyl
carbethoxyl
noun
(organic chemistry) Alternative form of carbethoxy
cardiopathy
cardiopathy
noun
(medicine) Any disease or disorder of the heart
cartography
cartography
noun
(countable, figuratively) An illustrative discussion of a topic.
(uncountable) The creation of charts and maps based on the layout of a territory's geography.
catchpolery
cathography
catholicity
catholicity
noun
Catholicism.
The quality of being catholic, universal or inclusive.
cephalocyst
cephalology
cephalotomy
cephalotomy
noun
(medicine) craniotomy; usually applied to bisection of the fetal head with a saw
dissection or opening of the head
ceratohyoid
ceratohyoid
noun
A horny part of the hyoid bone that connects it to the epihyoid
ceratophrys
ceratophyta
ceratophyte
ceratophyte
noun
(zoology) a type of coral polyp, the internal axis of which has the appearance of wood or horn.
chalazogamy
chalazogamy
noun
(botany) A process of fecundation in which the pollen tube penetrates to the embryo sac through the tissue of the chalaza, instead of entering through the micropyle.
chalcedonyx
chalcedonyx
noun
(mineralogy) An agate formed of a white opaque chalcedony alternating with a greyish translucent chalcedony.
chalcomancy
chancellory
chancellory
noun
Alternative spelling of chancellery
chaotically
chaotically
adv
In a chaotic manner.
charactonym
charactonym
noun
(literature) A name that is somehow descriptive of the character who bears it.
chardonnays
chardonnays
noun
plural of chardonnay
chasmophyte
chasmophyte
noun
(botany) chomophyte
chatoyances
chatoyances
noun
plural of chatoyance
cheirognomy
cheiromancy
cheiromancy
noun
Alternative form of chiromancy
cheirosophy
cheirosophy
noun
Alternative form of chirosophy
cherrystone
cherrystone
noun
(used as a size classification by fish merchants) A hard clam (Mercenaria mercenaria) that is larger than a countneck, littleneck or topneck but smaller than a quahog.
chevronelly
chevronelly
adj
(heraldry) Marked with a chevronel or chevronels.
chilacayote
chilacayote
noun
A species of squash, Cucurbita ficifolia.
chiloplasty
chinchayote
chinchayote
noun
Alternative form of chayote
chirography
chirography
noun
Synonym of autograph, writing in one's own hand.
Synonym of handwriting or penmanship, one's personal skill at writing.
Synonym of palmistry, fortune-telling based on one's hand.
chiromegaly
chiromegaly
noun
Abnormal gigantism of the hands.
chiromyidae
chiroplasty
chiroplasty
noun
(surgery) plastic surgery to the hand
chlamydeous
chlamydeous
adj
(botany) That has a perianth
chlamydozoa
chlamydozoa
noun
plural of chlamydozoon
chlamyphore
chlamyphore
noun
(zoology, dated) A small South American armadillo (Chlamyphorus truncatus and Chlamyphorus retusus, now Calyptophractus retusus), covered with a leathery shell.
chlorhydric
chlorhydric
adj
(chemistry) Alternative form of hydrochloric
chlorimetry
chlorimetry
noun
Alternative form of chlorometry
chlorometry
chlorometry
noun
The process of testing the bleaching power of any combination of chlorine.
chlorophyll
chlorophyll
noun
(biochemistry) Any of a group of green pigments that are found in the chloroplasts of plants and in other photosynthetic organisms such as cyanobacteria.
choanocytal
choanocytal
adj
Relating to choanocytes
choanocytes
choanocytes
noun
plural of choanocyte
chocowinity
chokecherry
chokecherry
noun
Any of several American wild cherry trees, especially Prunus virginiana.
cholecyanin
cholecystic
cholecystic
adj
Relating to the cholecyst (gall bladder)
cholecystis
cholecystis
noun
(anatomy, dated) The gall bladder.
cholesteryl
cholesteryl
noun
(organic chemistry) The univalent radical derived from cholesterol.
chondrocyte
chondrocyte
noun
(biology) A cell that makes up the tissue of cartilage.
chondrogeny
chondrology
chondrology
noun
The branch of anatomy that deals with cartilage.
chondrotomy
chondrotomy
noun
(anatomy) The dissection of cartilage.
choregraphy
choregraphy
noun
Alternative form of choreography
chorography
chorography
noun
The study of provinces, regions, cities, etc., as opposed to larger-scale geography.
chresmology
chresmology
noun
a collection of prophecies
the study of prophecy
chrismatory
chrismatory
noun
A globular ampulla or jar used to hold chrism.
Part of a church set aside for the rite of confirmation.
christology
christology
Noun
A field of study within Christian theology which is concerned with the nature of Jesus Christ, particularly with how the divine and human are related in his person.
A particular theory or viewpoint within the field of Christology, e.g. Chalcedonian Christology, Arian Christology, etc.
chromolysis
chromolysis
noun
Alternative form of chromatolysis
chromophyll
chromophyll
noun
(biology) Any plant pigment (such as chlorophyll)
chromoscopy
chromotropy
chromotropy
noun
Synonym of chromotropism
chromotypic
chromotypic
adj
Relating to chromotypes; produced by chromotypy
chronically
chronically
adv
In a chronic manner, or to a chronic degree.
chronomancy
chronomancy
noun
The divination of the best time to do something, or the determination of lucky and unlucky days.
chronometry
chronometry
noun
The science of the measurement of time
chronoscopy
chronoscopy
noun
The measurement of very small time intervals by means of a chronoscope
chrysarobin
chrysarobin
noun
(organic chemistry) A bitter yellow substance forming the essential constituent of Goa powder, and yielding chrysophanic acid.
chrysoberyl
chrysoberyl
noun
(mineralogy) A vitreous mineral, often pale green, a mixed oxide of aluminium and beryllium with the chemical formula BeAl₂O₄, used as a gemstone.
chrysocolla
chrysocolla
noun
(mineralogy) A vitreous silicate mineral that is a minor ore of copper, with the chemical formula (Cu²⁺,Al)₂H₂Si₂O₅(OH)₄·nH₂O.
chrysocracy
chrysocracy
noun
Rule by the rich; plutocracy.
chrysoeriol
chrysoeriol
noun
(organic chemistry) The flavone methylluteolin
chrysograph
chrysograph
noun
A document written or printed in gold ink.
chrysoidine
chrysoidine
noun
A yellow-orange crystalline dye, C₆H₅N₂.C₆H₃(NH₂)₂.
Any of a group of dyestuffs resembling chrysoidine.
chrysolites
chrysolites
noun
plural of chrysolite
chrysolitic
chrysomelid
chrysomelid
noun
Any leaf beetle of the family Chrysomelidae
chrysomonad
chrysomonad
noun
Synonym of chrysophyte
chrysophane
chrysophane
noun
(organic chemistry) A glucoside extracted from rhubarb as a bitter, yellow, crystalline powder, yielding chrysophanic acid on decomposition.
chrysophyll
chrysophyll
noun
(organic chemistry) The yellow colouring matter in the green chlorophyll pigment of plants.
chrysophyte
chrysophyte
noun
Any golden alga of the class Chrysophyceae
chrysopidae
chrysopoeia
chrysopoeia
noun
(alchemy) Transmutation into gold.
chrysoprase
chrysoprase
noun
(mineralogy) A variety of light-green translucent quartz.
chrysosperm
chrysosperm
noun
(obsolete) The seed of gold; an alchemical means of creating gold.
chrysothrix
chrysotiles
chrysotiles
noun
plural of chrysotile
chylangioma
chylangioma
noun
(pathology) A tumor filled with chyle
chylaqueous
chylaqueous
adj
(zoology) Consisting of chyle diluted with water; said of a liquid that forms the circulating fluid of some inferior animals.
chylidrosis
chyliferous
chyliferous
adj
That bears or transmits chyle.
chylomicron
chylomicron
noun
(biology) A microscopic globule of lipoprotein, found in blood and lymph, that is associated with the digestion of fats