| 释义 |
pennaceous, a. rare.|pɛˈneɪʃəs|
[f. mod.L. pennāce-us (f. penna feather, pen) + -ous: see -aceous.]
a. Ornith. Having the structure of a pen-feather or quill-feather.
b. Entom. and Bot. Applied to markings resembling feathers, or to surfaces or structures having such markings.
1857Mayne Expos. Lex., Pennaceus,..having the surface marked with lengthened stains,..compared to feathers..: pennaceous. 1890Webster, Pennaceous (Zöol.), like or pertaining to a normal feather. 1890Cent. Dict., Pennaceous.., having the structure of a penna or contour-feather; not plumulaceous... In entom., resembling the web of a feather; having fine, close, parallel lines springing diagonally from a single line. 1893Syd. Soc. Lex., Pennaceous, in Botany, marked with longitudinal stains looking like feathers. |