Lexical Definition

‎שְׂמָמִית‎ sᵉmâmîyth (sem-aw-meeth') lizard ^H:N-F
probably from ‎שָׁמֵם‎ (in the sense of poisoning)

spider.

• a lizard (from the superstition of its noxiousness)

1) a kind of lizard

Brown-Driver-Briggs

‎שְׂמָמִית‎ noun feminine a kind of lizard (so ᵐ5 ᵑ9 ᵑ7^{Lev 11:30} compare Str^Pr (also on ‎שׂ‎ > ‎שׁ‎)); — absolute ‎׳‎‎שׂ‎ Prov 30:28 (compare Shipley-Cook^{Ency. Bib. LIZARD}).

Brown-Driver-Briggs References