Ptĕr'i-do-mā'ni-ā, n.

(tĕr'i-do-mā'ni-ā), n. [Lat. pter-is, pteridis, Gr. πτέρις, a fern, and μανία, rage.] A madness or strong fancy for ferns. [Rare.] Your daughters, perhaps, have the prevailing pteridomania, and are collecting and buying ferns. C. Kingsley.