RhymeZone: vygotskian definitions

Definitions of Vygotskian:

adjective: Of or relating to Lev Vygotsky (Russian: Лев Вы́готский or Выго́тский, 1896–1934), Soviet Belarusian psychologist.
noun: A proponent of Vygotsky's theories.

(Definitions from Wiktionary)