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单词
ostracoderm
释义
WordReference Random House Unabridged Dictionary of American English © 2024
os•tra•co•derm
(os
′
trə kō dûrm′),
USA pronunciation
n.
Paleontology
any of several extinct jawless fishes of the Ordovician, Silurian, and Devonian periods, having the body enclosed in an armor of bony plates.
Greek
ostrakódermos
with a shell, equivalent. to
óstrako
(
n
) shell, tile +
-dermos
-
derm
Neo-Latin
Ostracodermi,
plural of
Ostracodermus
1890–95
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更新时间:2025/7/23 19:04:18