Placoid
[plækɒid]
解释:
(a.) Platelike; having irregular, platelike, bony scales, often bearing spines; pertaining to the placoids.
(n.) Any fish having placoid scales, as the sharks.
(n.) One of the Placoides.
整理:辛克莱
解释:
adj. plate-like.—Placoid fishes an order of fishes having placoid scales irregular plates of hard bone not imbricated but placed near together in the skin.
校对:内奥米