adjective Botany. in two vertical rows.
Origin: 1650–60; <
Late Latin bifārius twofold, double, derivative (see
-ious) of
Latin bifāriam (adv.) in two parts or places, equivalent to
bi- bi-1 +
-fāriam (perhaps derivative of
*fās utterance, thus orig. “having two expressions”; see
infant); cf.
multifarious Related forms bi·far·i·ous·ly, adverb