3 examples of imperforate in sentences

unpierced^, imporous^, caecal [Med.]; closable; imperforate, impervious, impermeable; impenetrable; impassable, unpassable^; invious^; pathless, wayless^; untrodden, untrod. unventilated; air tight, water tight; hermetically sealed; tight, snug.

Shell minute, obliquely conical, thin, pellucid, variegated with spiral opaque white intercepted striae and several transverse scarlet bands formed of oblique lines; axis, imperforated, one-sixth, diameter one-eighth, of an inch.

It is necessary to observe, that I am acquainted with exceptions to the structure of the ovulum as I have here described it, In Compositae its coats seem to be imperforated, and hardly separable, either from each other or from the nucleus, in this family, therefore, the direction of the embryo can only be judged of from the vessels of the testa.

3 examples of  imperforate  in sentences