hypognathus

hy·pog·na·thus

(hī-pog'nă-thŭs), In the diphthong gn, the g is silent only at the beginning of a word.
Unequal conjoined twins in which the rudimentary parasite is attached to the mandible of the autosite. See: conjoined twins.
[hypo- + G. gnathos, jaw]
References in periodicals archive ?
1999) revealed sexual dimorphism in morphometric and meristic features other than the not so apparent of body coloration and nuptial tubercle that are normally used for sex identification in Hypognathus placitus (Plain minnows).