annulate

形容词 annulate:

1. shaped like a ring
   同义词：annular, annulated, circinate, circular, ringed, ring-shaped, doughnut-shaped

an.nu.late

adj.（形容词）
Having or consisting of rings or ringlike segments.
环状的，由环构成的：有环或环形部分的，由环或环形部分构成的

来源：
Latin 3nul3tus
拉丁语 3nul3tus
from 3nulus [ring] * see annulus
源自 3nulus [环，环形物] *参见 annulus