English Explanatory Dictionary

placoid

English dictionary entry

Meanings

adj
  1. Platelike; having irregular, platelike, bony scales, often bearing spines; pertaining to the placoid fish
noun
  1. Such a scale
  2. Any fish having placoid scales, such as the sharks
  3. A placodioid lichen

Word forms

placoid placoids

Etymology

From Ancient Greek πλάξ (pláx, stem plak-) + -oid.

Related words

microplacoid
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