Definitions
from The Century Dictionary.
- noun In ichthyology, the basal bone of a fin.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Anat.) A bar of cartilage at the base of the embryonic fins of some fishes. It develops into the metapterygium.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
cartilage at the base of thefins of somefish that develops into themetapterygium upon maturity
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