Pa-chyp'te-ris, n.
n. [Gr. παχύς, thick, and πτέρις, a kind of fern having feathery leaves, from πτερόν, feather.] (Paleon.) An extinct genus of ferns, found fossil. Eng. Cyc.
n. [Gr. παχύς, thick, and πτέρις, a kind of fern having feathery leaves, from πτερόν, feather.] (Paleon.) An extinct genus of ferns, found fossil. Eng. Cyc.