One who is engaged in arachnology, the study of arachnids.
araliophyllum
archaeography
archaeography
noun
Discipline for publishing treatises of any antiquity or antiquities.
archaeohippus
archaeolithic
archaeolithic
adj
(archaeology) Of or relating to the earliest Stone Age; applied to a prehistoric period preceding the Paleolithic.
archaeologian
archaeologian
noun
(archaic) An archaeologist.
archaeologies
archaeologies
noun
plural of archaeology
archaeologist
archaeologist
noun
Someone who studies or practises archaeology.
archaeopteris
archaeopteryx
archbishopess
archbishopess
noun
(rare) A female archbishop.
(rare) The wife of an archbishop.
archbishopric
archbishopric
noun
(ecclesiastical) The jurisdiction of an archbishop.
(ecclesiastical) The rank or office of an archbishop.
archcorrupter
archdeaconate
archdeaconess
archdeaconess
noun
A female archdeacon.
The wife of an archdeacon.
archdogmatist
archegoniatae
archegosaurus
archeological
archeological
adj
(Canada, US) Alternative spelling of archaeological
archeptolemus
archespsporia
archhypocrisy
archhypocrite
archiblastoma
archidiaconal
archidiaconal
adj
(Anglicanism, Eastern Orthodoxy) Pertaining to an archdeacon.
archidiskodon
archigonocyte
archipelagoes
archipelagoes
noun
plural of archipelago
architectonic
architectonic
adj
(figuratively) Foundational, fundamental; supporting the structure of a morality, society, or culture.
Relating to or characteristic of architecture, design and construction.
Relating to the scientific systematization of the totality of knowledge.
noun
The design, structure, or architecture of something.
archostenosis
archplutocrat
archprotopope
archprototype
archscoundrel
archsynagogue
arctocephalus
areographical
areographical
adj
Synonym of areographic
aristolochine
arithmocratic
arithmocratic
adj
Relating to arithmocracy.
arithmography
arithmography
noun
(linguistics) The encoding of words as numbers
A formal presentation of the properties of numbers.
armouchiquois
arrhenotokous
arrhenotokous
adj
(zoology) Relating to arrhenotoky; producing males from unfertilized eggs.
arsenicophagy
arsenicophagy
noun
The eating of arsenic, formerly practiced for supposed health benefits.
arsenotherapy
arsenotherapy
noun
(medicine) The treatment of a disease with a compound of arsenic
arteriography
arteriography
noun
(medicine, dated) description of the arteries
radiography of an artery
arthrectomies
arthrectomies
noun
plural of arthrectomy
arthrocleisis
arthrodonteae
arthroempyema
arthrogastran
arthroplastic
arthroplastic
adj
Relating to arthroplasty
arthropterous
arthrorrhagia
arthrosporous
arthrosporous
adj
Relating to arthrospores.
arthrosteitis
arthrotyphoid
arthroxerosis
artophophoria
ascothoracica
aspidochirota
asthenosphere
asthenosphere
noun
(geology) The zone of the Earth's upper mantle, below the lithosphere.
astrapophobia
astrapophobia
noun
astraphobia
astrophyllite
astrophyllite
noun
(mineralogy) A rare, brown to golden-yellow hydrous potassium iron titanium silicate mineral, visually identical to kupletskite.
astrophysical
astrophysical
adj
Of or pertaining to astrophysics.
astrotheology
astrotheology
noun
Theology founded on observation or knowledge of the celestial bodies.
asynchronisms
asynchronisms
noun
plural of asynchronism
atelorachidia
atherogenesis
atherogenesis
noun
(pathology) The formation of atheromas, especially on the walls of the arteries
atheromatosis
atheromatosis
noun
(pathology) The deposition of atheromas in the arteries
atmosphereful
atmospherical
atmospherical
adj
atmospheric
austrophilism
authenticator
authenticator
noun
(film, television) A person employed to check the accuracy and realism of a script.
A feature that shows something to be authentic.
One who authenticates.
authorisation
authorisation
noun
Alternative spelling of authorization
authoritarian
authoritarian
adj
Demanding obedience to authority; marked by authoritarianism; dictatorial, tyrannical.
Of, or relating to, or exhibiting strict obedience to an authority; favoring authoritarianism over civic and individual liberties.
Tending to impose one's demands upon others as if one were an authority.
noun
One who commands absolute obedience to his or her authority.
One who follows and is excessively obedient to authority.
authoritative
authoritative
adj
Arising or originating from a figure of authority
Having a commanding style.
Highly accurate or definitive; treated or worthy of treatment as a scholarly authority
authorization
authorization
noun
(countable) (A document giving) formal sanction, permission or warrant.
(countable) An act of authorizing.
(government) Permission, possibly limited, to spend funds for a specific budgetary purpose.
(uncountable) Permission.
autobiography
autobiography
noun
(countable) A self-written biography; the story of one's own life.
(uncountable) Biographies of this kind regarded as a literary genre.
autocatharsis
autographical
autographical
adj
Relating to an autograph, or one's own handwriting.
Relating to, or used in, the process of autography.
autoheterosis
automatograph
automatograph
noun
(obsolete or historical) An instrument for recording involuntary movements of a human subject.
autoprothesis
autotelegraph
autotelegraph
noun
Synonym of telautograph
azygobranchia
bachelorhoods
bachelorhoods
noun
plural of bachelorhood
bactericholia
bacteriophage
bacteriophage
noun
(microbiology, virology) A virus that specifically infects bacteria.
bacteriophagy
bacteriophagy
noun
The feeding on bacteria.
balanorrhagia
balneographer
balneographer
noun
One who writes descriptions of therapeutic baths.
balneotherapy
balneotherapy
noun
The treatment of disease by bathing.
balsamorrhiza
bartholinitis
bartholinitis
noun
inflammation of Bartholin's cyst
basichromatic
basichromatin
basichromatin
noun
The basophil portion of the chromatin of a cell.
basichromiole
bathmotropism
bathmotropism
noun
Synonym of bathmotropy
batrachotoxin
batrachotoxin
noun
(neurotoxicology, uncountable) An extremely neurotoxic and cardiotoxic steroidal alkaloid found in poison dart frogs.
(toxicology, countable) Any one of a group of extremely neurotoxic and cardiotoxic steroidal alkaloids found in poison dart frogs, Melyridae beetles, and certain birds.
behavioristic
behavioristic
adj
Of or pertaining to behaviorism, especially B. F. Skinner’s school of radical behaviorism.
behaviourally
behaviourally
adv
With respect to behaviour
bibliographer
bibliographer
noun
A person who compiles bibliographies, or who studies bibliography.
bibliographic
bibliographic
adj
Of or pertaining to bibliography.
bibliothecary
bibliothecary
noun
(now rare) A librarian.
bibliotherapy
bibliotherapy
noun
A nonpharmacological therapy using reading materials to meet people’s therapeutic or developmental needs.
biogeographer
biogeographer
noun
A person engaged in biogeography.
biogeographic
biogeographic
adj
Of or pertaining to biogeography, the study of the geographical arrangement of plants and animals
blabbermouths
blabbermouths
noun
plural of blabbermouth
blastospheric
blastospheric
adj
(embryology) blastular
blennorrhagia
blennorrhagia
noun
Excessive blennorrhea, or mucous discharge, especially as seen in gonorrhea.
blennorrhagic
blennorrhagic
adj
(pathology) of or relating to blennorrhoea
blennorrhinia
blennotorrhea
blepharophyma
blepharoplast
blepharoplast
Noun
A basal body.
blepharospasm
blepharospasm
noun
(medicine) A physiological condition characterized by recurring involuntary twitches or closing of the eyelids.
blepharospath
boardinghouse
boardinghouse
noun
Alternative spelling of boarding house
boardsmanship
boardsmanship
noun
Alternative form of boardmanship
boldheartedly
boroughmaster
boroughmaster
noun
The mayor, governor, or bailiff of a borough.
bostrychoidal
botryotherapy
brachelytrous
brachelytrous
adj
(entomology, of a beetle) That has short elytrons
brachiocrural
brachiocrural
adj
(anatomy) Relating to both an upper and lower limb (especially to an arm and a leg or thigh)
brachiofacial
brachiofacial
adj
(anatomy) Relating to the arm and the face.
brachioganoid
brachiolarian
brachiolarian
adj
Relating to brachiolaria
brachiopodist
brachiopodous
brachioradial
brachioradial
adj
(anatomy) Relating to the forearm (between wrist and elbow)
brachiosaurus
brachiosaurus
noun
A large herbivorous sauropod dinosaur, Brachiosaurus altithorax, which lived during the Jurassic period.
brachychronic
brachychronic
adj
Misspelling of brachycranic.
brachydodrome
brachydomatic
brachydontism
brachyglossal
brachypterous
brachypterous
adj
(zoology) Having short, possibly non-functional wings
brachystomata
brachystomous
branchicolous
branchiferous
branchiferous
adj
(anatomy) Having gills; branchiate.
branchiomeric
branchiomeric
adj
Of or pertaining to branchiomerism
Of, pertaining to, or derived from the branchiomere
branchiopodan
branchiostege
branchiostege
noun
(anatomy) The branchiostegal membrane.
branchiostoma
branchiostoma
noun
the lancelet (Amphioxus lanceolatus)
breakthroughs
breakthroughs
noun
plural of breakthrough
breechloading
breechloading
adj
Describing a breechloader gun: one that has ammunition loaded from the rear of the barrel rather than where it will exit.
bridgehampton
brokenhearted
brokenhearted
adj
Grieved and disappointed, especially with the loss of a beloved person or thing, such as the repudiation of a romantic relationship.
bronchiarctia
bronchiospasm
bronchography
bronchography
noun
radiography of the bronchus, involving the use of contrast