genus Aldrovanda
— Navneord
– Engelsk
~ one species: waterwheel plant
genus Aplysia
— Navneord
– Engelsk
~ type genus of the family Aplysiidae
genus Achillea
— Navneord
– Engelsk
~ perennial often aromatic and sometimes mat-forming herbs of north temperate regions: yarrow; milfoil
genus Anopheles
— Navneord
– Engelsk
~ malaria mosquitoes; distinguished by the adult's head-downward stance and absence of breathing tubes in the larvae
genus Anguis
— Navneord
– Engelsk
~ type genus of the Anguidae: blindworms
genus Apatosaurus
— Navneord
– Engelsk
~ large quadrupedal herbivorous dinosaurs with very long neck and tail; late Jurassic
genus Actinomeris
— Navneord
– Engelsk
~ used in some classification systems for plants now included in genus Verbesina
genus Acer
— Navneord
– Engelsk
~ type genus of the Aceraceae; trees or shrubs having winged fruit
genus Aporocactus
— Navneord
– Engelsk
~ small genus of epiphytic cacti of Mexico
genus Acanthurus
— Navneord
– Engelsk
~ type genus of the Acanthuridae: doctorfishes
genus Allionia
— Navneord
– Engelsk
~ small genus of chiefly American herbs
genus Ananas
— Navneord
– Engelsk
~ 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
— Navneord
– Engelsk
~ herbs or shrubs or small trees: flowering maple; Indian mallow
genus Ambystoma
— Navneord
– Engelsk
~ type genus of the Ambystomatidae
genus Anarhichas
— Navneord
– Engelsk
~ type genus of the Anarhichadidae
genus Ameiurus
— Navneord
– Engelsk
~ type genus of the Ameiuridae: bullhead catfishes