a. [ L. penna feather + -form: cf. F. penniforme. ] Having the form of a feather or plume. [ 1913 Webster ]
a. (Anat.) Half or partially penniform;
a. [ L. penna feather + -form: cf. F. penniforme. ] Having the form of a feather or plume. [ 1913 Webster ]
a. (Anat.) Half or partially penniform;