Arecidae
— Noun
– English
~ one of four subclasses or superorder of Monocotyledones; comprises about 6400 species in 5 families of trees and shrubs and terrestrial herbs and a few free-floating aquatics including: Palmae; Araceae; Pandanaceae and Lemnaceae
areflexia
— Noun
– English
~ absence of a reflex; a sign of possible nerve damage
arena
— Noun
– English
~ a playing field where sports events take place
arena
— Noun
– English
~ a large structure for open-air sports or entertainments
arena
— Noun
– English
~ the central area of an ancient Roman amphitheater where contests and spectacles were held; especially an area that was strewn with sand
arena
— Noun
– English
~ a particular environment or walk of life; "his social sphere is limited"; "it was a closed area of employment"; "he's out of my orbit"
arenaceous
— Adjective
– English
~ resembling or containing or abounding in sand; or growing in sandy areas; "arenaceous limestone"; "arenaceous grasses"