DIPHTHONGIZE
Diph"thong*ize, v. t. & i.
Defn: To change into a diphthong, as by affixing another vowel to a simple vowel. "The diphthongized long vowels." H. Sweet.
DIPHYCERCAL
Diph`y*cer"cal, a. Etym: [Gr. (Anat.)
Defn: Having the tail fin divided into two equal parts by the notochord, or end of the vertebral column; protocercal. See Protocercal.
DIPHYGENIC
Diph`y*gen"ic, a. Etym: [Gr. -genic.] (Zoöl.)
Defn: Having two modes of embryonic development.
DIPHYLLOUS
Diph"yl*lous, a. Etym: [Gr. diphylle.] (Bot.)
Defn: Having two leaves, as a calyx, etc.
DIPHYODONT
Diph"y*o*dont, a. Etym: [Gr. (Anat.)
Defn: Having two successive sets of teeth (deciduous and permanent), one succeeding the other; as, a diphyodont mammal; diphyodont dentition; — opposed to monophyodont. — n.