| 释义 |
im·perforate
I. \(ˈ)im, əm+\ adjective
Etymology: in- (I) + perforate
1. : not perforated : having no opening or aperture; specifically : lacking the normal opening
< an imperforate anus >
2. of a stamp or a sheet of stamps : lacking perforations or rouletting
3. : having the umbilicus obliterated by the later whorls — used of various spiral shells
II. noun
(-s)
: an imperforate stamp |