| 释义 |
lu·nule
\ˈlün(ˌ)yül\ noun
(-s)
Etymology: New Latin lunula
: a body part that suggests a crescent: as
a. [French, from Latin lunula] : the whitish mark at the base of a fingernail
b. : an impressed or modified area in front of the beak on the outside of many bivalve shells
c. : a small area above the antennae on the front of some of the true flies
d. : the crescentic unattached border of a semilunar valve
e. : one of the openings in the test of the keyhole urchins |