a. [f. as prec. + GEMINATE, ad. L. geminātus doubled, f. geminus twin.] = prec. (Chiefly in Bot.) Also Bigeminated ppl. a. (See quot.)
1817. R. Jameson, Char. Min., 205. Bi-geminated calcareous spar is a combination of two rhomboids and two dodecahedrons.
1835. Lindley, Introd. Bot. (1848), II. 361. [Decompound leaves are] bigeminate, when each of two secondary petioles bears a pair of leaflets.
