PLACOID


Meaning of PLACOID in English

adj.

Pronunciation: ' pla- ˌ ko ̇ id

Function: adjective

Etymology: Greek plak-, plax flat surface

Date: 1842

: of, relating to, or being a scale of dermal origin with an enamel-tipped spine characteristic of the elasmobranchs

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.