lateral lingual swellings
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lat·er·al lin·gual swell·ings
in the embryo, paired oval elevations that appear in the floor of the mouth at the first pharyngeal arch level; the primordial elevations, composed of mesenchyme covered by ectoderm of stomodeal origin, merge to form the greater part of the anterior two-thirds of the tongue.
Synonym(s): lateral lingual bud