A specimen of the species Archaeopteryx lithographica, being the earliest and most primitive known bird, representing a transition in the evolution of dinosaurs to birds.
autonephrotoxin
auxotrophies
auxotrophies
noun
plural of auxotrophy
axerophthol
axerophthol
noun
Vitamin A
benzoxyphenanthrene
cephalothorax
cephalothorax
noun
The fused head and thorax of spiders and crustaceans
cephalothoraxes
cephalothoraxes
noun
plural of cephalothorax
chartophylaxes
chartophylaxes
noun
plural of chartophylax
ciphertext
ciphertext
noun
Encoded text, text that is unreadable.
ciphertexts
ciphertexts
noun
plural of ciphertext
cytopharynxes
cytopharynxes
noun
plural of cytopharynx
dextroamphetamine
dextroamphetamine
noun
(pharmacology) One of the stereoisomers of amphetamine, with the chemical formula C₉H₁₃N, that is used to stimulate the central nervous system.
diphtherotoxin
diphtherotoxin
noun
An exotoxin secreted by Corynebacterium diphtheriae
erysipelothrix
esothyropexy
exarchateship
executorship
executorship
noun
the office or position of an executor
executrixship
executrixship
noun
The state or business of an executrix.
exhibitorship
exhibitorship
noun
The role or status of an exhibitor.
exocataphoria
expertship
expertship
noun
The role or status of an expert.
exstrophies
exstrophies
noun
plural of exstrophy
exstrophy
exstrophy
noun
(anatomy) The eversion or turning out of any organ, or of its inner surface.
(especially) A congenital malformation of the bladder in which the normally internal mucosa of the organ lies exposed on the abdominal wall because of failure of union between the halves of the pubic symphysis and between the adjacent halves of the abdominal wall.
externship
externship
noun
An experiential learning opportunity, usually offered by a school, similar to an internship, but generally shorter in duration.
externships
externships
noun
plural of externship
extractorship
extraepiphyseal
extraepiphyseal
adj
Outside of the epiphysis.
extrahepatic
extrahepatic
adj
Originating or occurring outside the liver.
extrametaphysical
extrametaphysical
adj
(rare) Outside of metaphysics.
extraparenchymal
extraparenchymal
adj
Unrelated to a parenchyma
extraparochial
extraparochial
adj
Beyond the limits of a parish.
extraparochially
extraparochially
adv
Outside the limits of a parish.
extrapatriarchal
extrapatriarchal
adj
Outside of patriarchy.
extraphenomenal
extraphenomenal
adj
Beyond or outside of phenomena.
extraphysical
extraphysical
adj
Not governed by physical laws
extraphysiological
extraspherical
extraspherical
adj
Outside of a sphere.
extrasyphilitic
formaldehydesulphoxylate
formaldehydesulphoxylate
noun
A salt or ester of formaldehydesulphoxylic acid.
gastrohysteropexy
hemopneumothorax
hemopneumothorax
noun
(medicine) pneumothorax and hemothorax occurring together
hepatorrhexis
hepatorrhexis
noun
(medicine, pathology) A rupture of the liver.
heptahexahedral
heptahexahedral
adj
Having seven ranges of faces one above another, each range containing six faces.
heptahydroxy
heptahydroxy
noun
(organic chemistry, in combination) seven hydroxy groups. (OH)₇
heteroduplex
heteroduplex
noun
(biochemistry) A nucleic acid composed of two chains with each derived from a different parent molecule
verb
To form such a compound by genetic recombination
hexametrographer
hexanitrodiphenylamine
hexanitrodiphenylamine
noun
(organic chemistry) A substance that was mixed with TNT in World War II to make it more explosive.
hexapartite
hexapartite
Adjective
In six parts.
hexapterous
hexapterous
adj
(botany) Having six wing-like processes or extensions
hexpartite
hexpartite
adj
hexapartite
hydropneumothorax
hydropneumothorax
noun
(medicine) The presence of both fluid and air in the pleural cavity
hydroxyapatite
hydroxyapatite
noun
A basic calcium phosphate mineral that is the principal inorganic constituent of bone and teeth.
hydroxytryptamine
hydroxytryptamine
noun
(organic chemistry) Any hydroxy derivative of tryptamine, but especially 5-hydroxytryptamine (serotonin)
hygroexpansivity
hypercatalexis
hypercatalexis
noun
(poetry) The addition of one or two syllables to the last foot of a verse
hypercathexis
hypercathexis
noun
An excessive concentration of mental energy on an object or person.
hyperexaltation
hyperexcitability
hyperexcitability
noun
Excessive sensitivity of the nerves.
hyperactivity
hyperexcitable
hyperexcitable
adj
Unusually or excessively excitable
hyperexcitableness
hyperexcitably
hyperexcitably
adv
In a hyperexcitable manner.
hyperexcited
hyperexcited
adj
Very highly excited.
hyperexcitement
hyperexcitement
noun
A state of very high excitement.
hyperextend
hyperextend
verb
(medicine) To extend a joint beyond its normal position in a way that stresses the ligaments, often causing injury
hyperextends
hyperextends
verb
Third-person singular simple present indicative form of hyperextend
hyperextension
hyperextension
noun
an exercise performed by lying on the stomach, ideally inclined upwards as on a Roman chair to reach a higher range of motion, and raising and lowering the upper torso.
the extension of a joint beyond its normal range; the condition of being hyperextended.
hyperflexibility
hyperflexibility
noun
The condition of being hyperflexible
hyperorthodox
hyperorthodox
adj
Extremely orthodox.
hyperorthodoxy
hyperorthodoxy
noun
Orthodoxy taken to excess.
hyperothodox
hyperothodoxy
hyperoxidation
hyperoxidation
noun
Excessive oxidation
hyperoxygenate
hyperoxygenate
verb
To oxygenate excessively
hyperoxygenating
hyperoxygenating
verb
present participle of hyperoxygenate
hyperoxygenation
hyperoxygenation
noun
(medicine) The administration of a higher than usual concentration of oxygen, or the condition of having such a concentration of oxygen.
hyperoxymuriate
hyperoxymuriate
noun
(chemistry, obsolete) Any perchlorate.
hyperoxymuriatic
hyperoxymuriatic
adj
(obsolete, chemistry) perchloric
hypersexualities
hypersexualities
noun
plural of hypersexuality
hypersexuality
hypersexuality
noun
The desire for sexual activity at levels high enough to be considered clinically significant.
hypertoxic
hypertoxic
adj
(rare, toxicology) Excessively toxic.
hypertoxicity
hypertoxicity
noun
The quality of being hypertoxic.
hysteropexia
hysteropexy
hysteropexy
noun
(surgery) The fixation of a misplaced or abnormally movable uterus.
laparohysteropexy
laparohysteropexy
noun
(surgery) ventrofixation of the uterus
lepothrix
leptothrix
lexicographist
lexicographist
noun
(chiefly archaic) A student specialising in the discipline of lexicography; lexicographer.
nephrotoxic
nephrotoxic
adj
that is poisonous to kidney tissue
nephrotoxicity
nephrotoxicity
noun
The state or condition of being nephrotoxic; toxicity that damages kidneys.
nephrotoxin
nephrotoxin
noun
Any nephrotoxic substance.
ophthalmorrhexis
orthopyroxene
orthopyroxene
noun
(mineralogy) Any pyroxene that forms orthorhombic crystals.
pancreatemphraxis
pentahexahedral
pentahexahedron
pentahydroxy
pentahydroxy
noun
(organic chemistry, in combination) Five hydroxy groups in a molecule.
phyllopteryx
plasmatorrhexis
pneumohemothorax
pneumohemothorax
noun
hemopneumothorax
pneumohydrothorax
pneumopyothorax
pneumothorax
pneumothorax
noun
(medicine) Presence of air inside the pleural cavity, usually caused by injury either to the lung or the chest wall.
posthexaplar
posthexaplaric
praxithea
preexhaust
preexhaustion
preexhibit
preexhibition
preexhibitor
preextinguish
preextinguishment
prothoraxes
pterothorax
pterothorax
noun
The mesothorax and metathorax of an insect
pyohemothorax
pyopneumothorax
pyopneumothorax
noun
(medicine) The accumulation of air (or other gas) and pus in the pleural cavity.
pyxidanthera
retroxiphoid
seropneumothorax
sixpennyworth
sixpennyworth
noun
(dated) A portion worth sixpence.
spondylexarthrosis
sternoxiphoid
streptothrix
streptothrix
noun
(biology) Any of the genus Streptothrix of bacilli, occurring in the form of long, smooth and apparently branched threads, either straight or twisted.
thixotropies
trachelectomopexia
trachelopexia
trisulphoxide
trophallaxes
trophallaxes
noun
plural of trophallaxis
urethremphraxis
ventrohysteropexy
xantholeucophore
xantholeucophore
noun
A leucophore arising from a xanthophore.
xanthophore
xanthophore
noun
(biology) A xanthochrome-containing chromatophore, frequently a lipophore
xanthopicrite
xanthopicrite
noun
(organic chemistry, archaic) A bitter crystalline alkaloid extracted from plants of family Xanthoxylaceae.
xanthoproteic
xanthoproteic
adj
Of or pertaining to xanthoproteic acid or xanthoproteins.
xanthoprotein
xanthoprotein
noun
A protein formed when xanthoproteic acid contacts epithelial cells, indicative of inadequate safety precautions when handling nitric acid.
xanthoproteinic
xanthoproteinic
adj
Alternative form of xanthoproteic
xanthopterin
xanthopterin
noun
A yellow crystalline solid that occurs mainly in the wings of butterflies and in the urine of mammals, converted by microorganisms into folic acid.
xanthospermous
xanthospermous
adj
(botany) Having yellow seeds
xerophthalmia
xerophthalmia
noun
(ophthalmology) A condition due to a deficiency of vitamin A where the conjunctiva and cornea become dry. The condition starts with conjunctival xerosis and night blindness and progresses to corneal xerosis and, later, a severe condition called keratomalacia.
xerophthalmic
xerophthalmic
adj
Of or pertaining to xerophthalmia.
xerophthalmos
xerophthalmy
xerophthalmy
noun
Alternative form of xerophthalmia
xerophyte
xerophyte
noun
(botany) Any plant suited for life in a habitat where water is scarce, such as in a desert or chaparral. Such plants may be succulent, have small or reduced leaves, or spines.
A desert plant
xerophytic
xerophytic
adj
(botany) Of, pertaining to, or being a xerophyte
(ecology) Having a very dry environment
noun
xerophyte
xerophytically
xerophytically
adv
As a xerophyte.
xerophytism
xerophytism
noun
(botany) The adaptation of plants to habitats where water is scarce.