As an adjective prototrophic is
of or pertaining to a prototroph or to prototrophy.
prototrophy
Not English
Prototrophy has no English definition. It may be misspelled.
English words similar to 'prototrophy':
prototropy,
prototropic,
prothetely,
prothetelic,
prototypic,
prototrophic,
partitively,
proteotypic,
predatorily,
parathetic,
proteotoxic