having two petals.
Chambers’s Twentieth Century Dictionary (part 1 of 4: A-D) Various
having two petals
having two phases. Botany. having a gametophytic and a sporophytic phase. adjective having two phases See two-phase
a drug with two dosage levels over the period taken, as an oral contraceptive.
biphenotypy bi·phe’no·typ’ic adj.