a. [f. L. crepuscul-um + -OUS.] Of the nature of twilight; dim, dusky, indistinct. (lit. and fig.)
1646. Sir T. Browne, Pseud. Ep., 343. A close apprehension of the one, might perhaps afford a glimmering light and crepusculous glance of the other.
1665. Glanvill, Sceps. Sci., xxii. 140. The beginnings of Philosophy were in a Crepusculous obscurity; and Its yet scarce past the Dawn.
1822. Eliza Nathan, Langreath, II. 268. Your shameless wanderings by the hour of crepusculous, are known to me.