diathèse, n.f., (med.) diathesis.

diatonique, adj., (mus.) diatonic.

diatoniquement, adv., in a diatonic scale, diatonically.

diatragacanthe, n.m., (pharm.) tragacanth powder.

diatribe, n.f., sharp criticism, dissertation, castigation, diatribe.

dicacité, n.f., waggery, causticity.

dichorée (-ko-), n.m., (Latin, Grec. poet.) dichoreus, dichoree.

dichotome (-ko-), adj., (bot.) dichotomous.

dichotomie (-ko-), n.f., (astron.) dichotomy.

dicotylédone, n.f., (bot.) dicotyledon.