1. (a.) In pairs or twains; two together; binate; twin; as, geminate flowers.

2. (v. t.) To double.

Janus-like ambidextrous bifacial bifold biform bilateral binary binate biparous bivalent conduplicate copy disomatous ditto double double-faced dual dupe duple duplex duplicate geminated ingeminate multiply by two redouble reduplicate repeat replicate reproduce second secondary twin twinned two-faced two-level two-ply two-sided two-story twofold