noun
Origin: < Gr pteris (gen. pteridos), fern (akin to pteron, feather: from the featherlike shape) + -logy
Related Forms:
See pteridology in American Heritage Dictionary 4
noun
Origin:
Origin: Greek pteris, pterid-, fern (from pteron, feather, wing; see pet- in Indo-European roots)
Origin: + -logy
.Related Forms: