An amphibian of the salamander tribe found in the elevated lakes of Mexico; the siredon. [1913 Webster]
" 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."
[1913 Webster]
axolotl, n. an aquatic newtlike salamander, Ambystoma mexicanum, from Mexico, which in natural conditions retains its larval form for life but is able to breed.