v.
Pronunciation: ə - ' ten-y ə -w ə t, -yü- ə t
Function: adjective
Etymology: Middle English attenuat, from Latin attenuatus, past participle of attenuare to make thin, from ad- + tenuis thin ― more at THIN
Date: 15th century
1 : reduced especially in thickness, density, or force
2 : tapering gradually usually to a long slender point < attenuate leaves>