The study of spined things, in particular sea urchins, and the resultant impact on taxonomy.
acanthopterygian
acanthopterygian
adj
(zoology) Similar to an acanthopterygian.
noun
(zoology) Any fish of the superorder Acanthopterygii.
acanthopterygii
achromatising
achromatising
verb
present participle of achromatise
achromatizing
achromatizing
verb
present participle of achromatize
actinautographic
actinautographic
adj
(obsolete, photography) That produces a developable impression on light-sensitive material without contact
actinautography
actinautography
noun
(obsolete, photography) The production of an actinautographic image
actinograph
actinograph
noun
A recording actinometer.
actinographic
actinography
actinography
noun
measurement with an actinograph
adenopharyngitis
adhibiting
adhibiting
verb
present participle of adhibit
adigranth
adsmithing
aegithognathae
aegithognathism
aegithognathous
aetheling
aethogen
aethogen
noun
(chemistry) A compound of nitrogen and boron which, when heated before the blowpipe, gives a brilliant phosphorescent; boric nitride.
affreightment
affreightment
noun
(nautical) The act of hiring, or the contract for use of, a vessel, or some part of it, to convey cargo.
affrighting
affrighting
verb
present participle of affright
affrightingly
affrightingly
adv
(archaic) So as to frighten or terrify.
affrightment
affrightment
noun
(archaic) Fright; fear; alarm; the fact or state of being frightened.
(obsolete) A cause of fear.
(obsolete) The action of frightening or terrifying; intimidation.
afghanets
afghanistan
afternight
agapanthus
agapanthus
noun
Any member of the genus Agapanthus of flowering plants.
agapanthuses
agapanthuses
noun
plural of agapanthus
agathin
agathodaemon
agathodaemon
noun
A benevolent spirit, as opposed to a cacodemon (an evil daemon).
agathodaemonic
agathodaemonic
adj
Relating to an agathodaemon.
agathodemon
agathodemon
noun
Alternative spelling of agathodaemon.
agathon
agentship
agentship
noun
(countable) The office or position of an agent.
(uncountable) A means of effecting something; agency.
aghastness
aghastness
noun
The state or quality of being aghast.
aghorapanthi
aglyphodont
aglyphodonta
aglyphodontia
agnatha
agnatha
noun
An agnathan.
agnathia
agnathia
noun
(pathology) A birth defect in which the mandible is missing.
agnathic
agnathic
Adjective
Jawless.
Afflicted by or characteristic of agnathia.
agnathostomata
agnathostomatous
agnathous
agnathous
adj
(pathology) Afflicted by or characteristic of agnathia.
Jawless.
agonistarch
agonistarch
noun
(Ancient Greece) One who trained persons to compete in public games and contests.
agonothet
agonothete
agonothete
noun
Alternative form of agonothetes
agonothetic
agonothetic
adj
Of or pertaining to an agonothete.
agrotechny
agrotechny
noun
The science and technology of agriculture.
airthing
airtightness
airtightness
noun
The quality of being airtight.
aktiengesellschaft
aleknight
alength
alength
Adverb
At full length; lengthwise.
alighten
alighten
verb
To alight, to dismount or get down from.
To alight; to land, to descend and rest.
To lighten; to reduce in weight or heaviness.
To make light; to illuminate or brighten.
alighting
alighting
noun
The act of one who alights.
verb
present participle of alight
alightment
alightment
noun
The act of alighting, or descending and settling.
alightments
alightments
noun
plural of alightment
allothigene
allothigenetic
allothigenetically
allothigenic
allothigenous
allothogenic
allothogenous
allotriognathi
allthing
allthing
pron
(obsolete) everything
almightiness
almightiness
noun
The state or quality of being almighty.
alphabeting
alphabeting
verb
present participle of alphabet
alphabetising
alphabetising
verb
present participle of alphabetise
alphabetizing
alphabetizing
verb
present participle of alphabetize
althing
althing
Proper noun
the national parliament of Iceland
altogetherness
amphigenetic
amphigenetic
adj
Relating to amphigenesis.
amphisporangiate
anaesthesiologist
anaesthesiologist
noun
(British spelling) Alternative spelling of anesthesiologist
anaesthesiology
anaesthesiology
noun
(British spelling, medicine) Alternative spelling of anesthesiology
anaesthetizing
anaesthetizing
verb
present participle of anaesthetize
anaglyptograph
anaglyptograph
noun
An instrument for making accurate engravings of any embossed object, such as a medal.
anaglyptographic
anaglyptographic
adj
Relating to anaglyptography.
anaglyptography
anaglyptography
noun
The art of copying works in relief, or of engraving as to give the subject an embossed or raised appearance; used in representing coins, bas reliefs, etc.
anaphylactogen
anaphylactogen
noun
(medicine) A substance likely to or capable of producing an adverse reaction (anaphylaxis) in a person.
anaphylactogenic
anaphylactogenic
adj
That tends to cause anaphylaxis.
anathematising
anathematising
verb
present participle of anathematise
anathematizing
anathematizing
verb
present participle of anathematize
anatomicochirurgical
anatomicopathologic
anatomicopathological
anatomicopathological
adj
Relating to anatomy and pathology.
anatomicophysiologic
anatomicophysiological
anatomicophysiological
adj
Relating to anatomy and physiology.
anatomopathologic
anatomopathologic
adj
Alternative form of anatomopathological
anatomopathological
anatomopathological
adj
(anatomy, pathology) Relating to both anatomy and pathology
androgametophore
anemometrograph
anemometrograph
noun
(archaic) An anemograph.
anemometrographic
anemometrographically
anesthesiologies
anesthesiologist
anesthesiologist
noun
(American spelling, Canadian spelling) A physician who specializes in anesthesiology and administers anesthesia.
anesthesiologists
anesthesiologists
noun
plural of anesthesiologist
anesthesiology
anesthesiology
noun
(American spelling, Canadian spelling) The science of administering anesthetics.
anesthetizing
anesthetizing
verb
present participle of anesthetize
angiasthenia
angioasthenia
angiocholecystitis
angiocholitis
angiocholitis
noun
Synonym of cholangitis
angioelephantiasis
angiohydrotomy
angiohypertonia
angiohypotonia
angiolith
angiolith
noun
A calcareous deposit in the wall of a blood vessel
angiolymphitis
angiopathy
angiopathy
noun
(pathology) Any disease of the blood vessels.
angiostrophy
angiothlipsis
angiotrophic
angiotrophic
adj
vasotrophic
anglesmith
angletouch
angletwitch
angletwitch
noun
(rare, dialectal) An angleworm; earthworm.
anglocatholicism
anglophobist
anhydrating
anight
anight
adv
(obsolete) In the night-time, at night.
anights
anights
adv
(archaic) In the night time; at night.
animatograph
anisognathism
anisognathous
anisognathous
adj
(pathology) Having different sizes to the upper and lower jaws
annihilating
annihilating
verb
present participle of annihilate
anopisthograph
anopisthograph
adj
(palaeography) written on one side only
anopisthographic
anopisthographic
adj
Not opisthographic; bearing writing on one side only.
anopisthographically
anorthographic
anorthographical
anorthographically
anorthography
anotherguess
anotherguess
adj
(archaic) Of another kind.
anthecological
anthecological
adj
Relating to anthecology
anthecologist
anthecologist
noun
One who studies anthecology.
anthecology
anthecology
noun
(biology) The study of the relationships between flowers and pollinators
antheming
antheming
verb
present participle of anthem
antherogenous
anthobiology
anthoecological
anthoecologist
anthoecology
anthogenesis
anthogenesis
noun
(biology) The production of both males and females by parthenogenesis.
(botany) The formation of the flowers of plants.
anthogenetic
anthogenous
anthography
anthography
noun
(botany) The branch of botany that deals with the description of flowers.
anthological
anthological
adj
Of or pertaining to anthology; consisting of extracts from different authors.