Century Dictionary and Cyclopedia
- n. The hindmost of several basal cartilages which the pterygium of a fish, as an elasmobraneh, may present. See pterygium.
GNU Webster's 1913
- n. (Anat.) The posterior of the three principal basal cartilages in the fins of fishes.
“The shaded part on the right is the section that persists in the five-fingered hand of the higher Vertebrates. (b the three basal pieces of the fin: mt metapterygium, rudiment of the humerus, ms mesopterygium, p propterygium.) (From Gegenbaur.))”
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