Word Study
neoteny
WORDNET DICTIONARY
Noun neoteny has 1 sense
OXFORD DICTIONARY
neoteny, n. the retention of juvenile features in the adult form of some animals, e.g. an axolotl.
Derivative
neotenic adj. neotenous adj.
Etymology
G Neotenie (as NEO- + Gk teino extend)
For further exploring for "neoteny" in Webster Dictionary Online