armiger
An esquire, originally carrying the armour of a knight; (hence, later) a man of the gentry ranking below a knight.
Any person entitled to bear a coat of arms.

armigero
Obsolete form of armiger.

armigeros
plural of armigero

armigers
plural of armiger

arrhinia
Congenital absence of the nose

artemon
A square foresail on a Roman oared ship.

artemons
plural of artemon

arthrolysis
The restoration of mobility in stiff, ankylosed joints by disrupting articular adhesions

aspergil
Alternative form of aspergillum.

aspergill
Alternative form of aspergillum.

aspergilla
plural of aspergillum

aspergillia
plural of aspergillium

aspergillium
Alternative form of aspergillum.

aspergills
plural of aspergill

aspergillum
An implement, in the form of a brush or of a rod with a perforated container, for sprinkling holy water; a holy-water sprinkle.

aspergillums
plural of aspergillum

aspergils
plural of aspergil

asperitas
A cloud formation characterized by wavy undulations in the cloud base.

aspersoir
aspergillum

aspersoirs
plural of aspersoir

aspheres
plural of asphere

auditeria
A space, typically found in schools, that combines the functions of a cafeteria and auditorium.

augers
plural of auger

avalone
Obsolete spelling of abalone.

avalones
plural of avalone

avicularium
A modified zooid, in some colonial bryozoans, in the form of a beak, that prevents other organisms from settling on the colony

awl-flies
plural of awl-fly

azidolysis
The disruption of a bond by reaction with an (inorganic) azide

azothermia
Elevated temperature caused by nitrogenous substances in the bloodstream.

ba
A being's soul or personality, represented as a bird-headed figure, which survives after death but must be sustained with offerings of food.

babinka
A rice cake made using rice flour, sugar and coconut milk and wrapped in banana leaves.

babinkas
plural of babinka

bacilluria
The discharge of urine containing bacilli.

baculites
plural of baculite

banalysis
Trivial and uninsightful analysis.

banded physa
Physella vinosa (or Physa vinosa), a freshwater snail endemic to North America.

bania
Alternative form of bunnia.

banias
plural of bania

bankiva
Gallus gallus bankiva, a subspecies of the red junglefowl

bankivas
plural of bankiva

banyas
plural of banya

bar clam
Synonym of Atlantic surf clam.

bas
plural of ba

basilissa
Alternative form of basilinna.

basket clams
plural of basket clam

basorelief
Alternative spelling of bas relief.

basoreliefs
plural of basorelief

bawcocks
plural of bawcock

bayou physa
Physella hendersoni (or Physa hendersoni), a freshwater snail endemic to the southeastern United States.

bean cowrie
A marine shellfish (Trivia merces)

bean cowries
plural of bean cowrie

bearded mussel
A coastal mussel of Britain, Modiolus barbatus.

belemnite
Any member of the extinct order †Belemnitida of Mesozoic marine cephalopods, very similar in many ways to the modern squid and closely related to the modern cuttlefish.

belemnites
plural of belemnite

bellerophon
Any of the genus †Bellerophon of fossil gastropod shells, believed to belong to the Heteropoda, and peculiar to the Paleozoic age.

bellerophons
plural of bellerophon

bigfin reef squid
A species of loliginid squid, Sepioteuthis lessoniana, characterized by large, rounded fins resembling a cuttlefish.

bigfin squid
Any member of the genus Magnapinna of rarely seen squid, characterized by extremely long arms and tentacles, and being the only squid known to inhabit the hadal zone of the ocean.

bilcocks
plural of bilcock

bivalve
Any mollusc belonging to the taxonomic class Bivalvia, characterized by a shell consisting of two hinged sections, such as a scallop, clam, mussel or oyster.
A pericarp in which the seedcase opens or splits into two parts or valves.

bivalves
plural of bivalve

black abalone
A black-shelled edible mollusc (Haliotis crachedorii), found off the North American Pacific coast.

black clam
Synonym of ocean quahog.

black limpet
Lottia asmi, a species of sea snail.

black olive
An olive picked after it has ripened; as opposed to a green olive which is picked before ripening.
Terminalia buceras, a tree of the Caribbean.

black slug
An omnivorous slug found in Europe and the Pacific Northwest, Arion ater, not always black, despite the name.

blanket octopuses
plural of blanket octopus

blood clam
blood cockle (Tegillarca granosa)

blood cockle
A clam of species Tegillarca granosa (syn. Anadara granosa) of edible ark clams.

blue mussel
A medium-sized edible mussel, Mytilus edulis, found on the North Atlantic coast of North America, Europe, and in other temperate and polar waters around the world.

blue-ringed octopus
Any octopus of the genus Hapalochlaena, with distinctive blue rings, that carry the highly poisonous venom tetrodotoxin (TTX).

bobtail trophon
Boreotrophon truncatus, a species of rocksnail.

bolides
plural of bolide
plural of bolis

bolis
A bolide or fireball (type of meteor)

boni
plural of bonus

bonus
Something extra that is good; an added benefit.
An extra sum given as a premium, e.g. to an employee or to a shareholder.
An addition to the player's score based on performance, e.g. for time remaining.
One or more free throws awarded to a team when the opposing team has accumulated enough fouls.

bonuses
plural of bonus

bonusses
plural of bonus

boring clam
A clam, Tridacna crocea, capable of burrowing even through rock.

bostryces
plural of bostryx

bostryx
A helicoid cyme.

bostryxes
plural of bostryx

bottletail squid
A cephalopod of the family Sepiadariidae.

bottomonia
plural of bottomonium

brellie
Alternative form of brelly.

brellies
plural of brelly
plural of brellie

brelly
Synonym of umbrella.

bristlecones
plural of bristlecone

broadshoulder physa
Physella parkeri (or Physa parkeri), a freshwater snail endemic to North America.

brollies
plural of brolly

brolly
Alternative form of brelly.

bromolysis
The ring-opening reaction of a bromide with an epoxide

bubble snails
plural of bubble snail

bulbi
plural of bulbus

bulbus
Bulb (e.g., flower bulb, body part).
Bulb (e.g., flower bulb, body part).
Bulb (e.g., flower bulb, body part).

bulla
A blister, vesicle, or other thin-walled cavity or lesion, as
A blister, vesicle, or other thin-walled cavity or lesion, as:
A clay envelope or hollow ball, typically with seal impressions or writing on its outside indicating its contents.
In ancient Rome, a kind of amulet or boss.
A handwritten document from the papal chancellery.
Any of several hollow structures as features of bones.
Any of several hollow structures as features of bones.

bullae
plural of bulla

bullas
plural of bulla

cadlina
Any dorid nudibranch in the genus Cadlina.

caeca
plural of caecum

caecum
A cavity open at one end (such as the blind end of a duct), especially a blind pouch connected to the large intestine between the ileum and the colon.

caecums
plural of caecum

caelatura
The art of producing decorative metalwork other than statuary, such as reliefs, intaglios, engravings, and chasing.

caenogastropods
plural of caenogastropod

calcar
A small oven or furnace, used for the calcination of sand and potash, and converting them into frit.

calcaria
plural of calcar

calcarina
The calcarine sulcus / calcarine fissure

calcars
plural of calcar

californites
plural of californite

calva
The calvaria; the dome or roof of the skull.

calvae
plural of calva

calvas
plural of calva

campanile
A bell tower (especially one that is freestanding), often associated with a church or other public building, especially in Italy.

campaniles
plural of campanile

campanili
plural of campanile

canarium
Any of the genus Canarium of about 100 species of tropical and subtropical evergreen trees, many yielding edible nuts, native or naturalized from Eastern Africa to Polynesia.

canariums
plural of canarium

cantalope
Misspelling of cantaloupe.

cantaloup
Alternative form of cantaloupe.