Programming language (3)
'programming language' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for ada that I've seen before include "Woman" , "Palindromic girl's name" , "Computer language; girl's name" , "Computer lang.; f. name" , "Programming language" .)
(Other definitions for python that I've seen before include "Tropical non-venomous snake" , "Large snake that strangles its prey" , "Large non-venomous snake" , "Boa relative" , "Large snake that kills prey by crushing" .)