Penna definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- pennaceous adjective
Penna definition by American Heritage Dictionary
noun pl. pen·nae
A contour feather of a bird, as distinguished from a down feather or a plume.
Origin: Latin, feather; see pet- in Indo-European roots.
- pen·naˈceous adjective
Variant of Penn
Penn, William 1644-1718; Eng. Quaker leader: founder of Pennsylvania