animal group
— Noun
– English
～ a group of animals
arsenic group
— Noun
– English
～ the univalent group derived from arsine
azo group
— Noun
– English
～ the bivalent group -N=N- united to two hydrocarbon groups
azido group
— Noun
– English
～ the univalent group N3- derived from hydrazoic acid
acyl group
— Noun
– English
～ any group or radical of the form RCO- where R is an organic group; "an example of the acyl group is the acetyl group"
Adapid group
— Noun
– English
～ extinct small mostly diurnal lower primates that fed on leaves and fruit; abundant in North America and Europe 30 to 50 million years ago; their descendents probably include the lemurs; some authorities consider them ancestral to anthropoids but others consider them only cousins
acetyl group
— Noun
– English
～ the organic group of acetic acid (CH3CO-)
advocacy group
— Noun
– English
～ an interest group that tries to influence legislators or bureaucrats to act in their favor, typically through lobbying
ABO group
— Noun
– English
～ a classification system for the antigens of human blood; used in blood transfusion therapy; four groups are A and B and AB and O
Abelian group
— Noun
– English
～ a group that satisfies the commutative law
Acris gryllus
— Noun
– English
～ a cricket frog of eastern United States
Aramus guarauna
— Noun
– English
～ wading bird of South America and Central America
arm guard
— Noun
– English
～ a pad worn by football players and hockey goalkeepers
Andrea Guarneri
— Noun
– English
～ founder of a family of Italian violin makers (1626?-1698)
Alec Guinness
— Noun
– English
～ English stage and screen actor noted for versatility (1914-2000)
acoustic guitar
— Noun
– English
～ sound is not amplified by electrical means
akustisk guitar
— Noun
– Danish
～ sprødt klingende guitar med hul krop og lydhul i m ...
Arabian Gulf
— Noun
– English
～ a shallow arm of the Arabian Sea between Iran and the Arabian peninsula; the Persian Gulf oil fields are among the most productive in the world