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Definition of Gnathidium
1. n. The ramus of the lower jaw of a bird as far as it is naked; -- commonly used in the plural.
Definition of Gnathidium
1. Noun. (zoology) The ramus of the lower jaw of a bird as far as it is naked. ¹
¹ Source: wiktionary.com
Medical Definition of Gnathidium
1.
Origin: NL, fr. Gr. The jaw.