Webster's Revised Unabridged Dictionary · 1913

Axolotl

Axolotl ({not transcribed}) , noun

[The native name.]

(Zoology) An amphibian of the salamander tribe found in the elevated lakes of Mexico; the siredon.

When it breeds in captivity the young develop into true salamanders of the genus Amblystoma. This also occurs naturally under favorable conditions, in its native localities; although it commonly lives and breeds in a larval state, with persistent external gills. See Siredon.