a. 盾状的

[医] 盾形的

[ adj ]
(of a leaf shape) round, with the stem attached near the center of the lower surface rather than the margin (as a nasturtium leaf for example)
<adj.all>

Peltate \Pel"tate\, Peltated \Pel"ta*ted\, a. [Cf. F. pelt['e].
See {Pelta}.]
Shield-shaped; scutiform; (Bot.) having the stem or support
attached to the lower surface, instead of at the base or
margin; -- said of a leaf or other organ. -- {Pel"tate*ly},
adv.