pen·na 
(pĕnə)
(pĕnə)n. pl. pen·nae (pĕnē)
A contour feather of a bird, as distinguished from a down feather or a plume.
[Latin, feather; see pet- in the Appendix of Indo-European roots.]
pen·naceous (pĕ-nāshəs) adj.
| 单词 | penna |
| 释义 | pen·na (pĕnə)n. pl. pen·nae (pĕnē) A contour feather of a bird, as distinguished from a down feather or a plume. [Latin, feather; see pet- in the Appendix of Indo-European roots.] pen·naceous (pĕ-nāshəs) adj. |
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