genus Apatosaurus
— Noun
– English
~ large quadrupedal herbivorous dinosaurs with very long neck and tail; late Jurassic
genus Actinomeris
— Noun
– English
~ used in some classification systems for plants now included in genus Verbesina
genus Acer
— Noun
– English
~ type genus of the Aceraceae; trees or shrubs having winged fruit
genus Aporocactus
— Noun
– English
~ small genus of epiphytic cacti of Mexico
genus Acanthurus
— Noun
– English
~ type genus of the Acanthuridae: doctorfishes
genus Allionia
— Noun
– English
~ small genus of chiefly American herbs
genus Ananas
— Noun
– English
~ a genus of tropical American plants have sword-shaped leaves and a fleshy compound fruits composed of the fruits of several flowers (such as pineapples)
genus Abutilon
— Noun
– English
~ herbs or shrubs or small trees: flowering maple; Indian mallow
genus Ambystoma
— Noun
– English
~ type genus of the Ambystomatidae
genus Anarhichas
— Noun
– English
~ type genus of the Anarhichadidae
genus Ameiurus
— Noun
– English
~ type genus of the Ameiuridae: bullhead catfishes