aglossostomia

Congenital absence of the tongue, with a malformed (usually closed) mouth. [G. a- priv. + glossa, tongue, + stoma, mouth]

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aglos·so·sto·mia (a″glos-o-stoґme-ə) [a-¹ + glosso- + stom- + -ia] a congenital anomaly characterized by a malformed mouth and absence of the tongue.