Definition of Morganist in US English:

Morganist

adjective

Biology
historical
  • Following the principles of genetics propounded by T. H. Morgan; supporting Morganism.

noun

Biology
historical
  • A supporter or advocate of Morganism.

Origin

1940s; earliest use found in Science. From the name of Thomas Hunt Morgan + -ist, after Russian morganist, noun, morganističeskij, adjective.