Definition of protosome in English:

protosome

noun

  • 1Genetics
    historical The larger of two types of particle which together were postulated to constitute a gene. Compare "episome".

  • 2Zoology
    = "prosoma".

Origin

1930s. From proto- + -some.

Pronunciation

protosome

/ˈprəʊtəˌsəʊm/