Prot

abbreviation

Definition of Prot


prot-

combining form
variants: or proto-

Definition of prot-

1 a : first in time
  • protohistory
b : beginning : giving rise to
  • protoplanet
2 : parent substance of a (specified) substance
  • protactinium
3 : first formed : primary
  • protoxylem
4 capitalized : relating to or constituting the recorded or assumed language that is ancestral to a language or to a group of related languages or dialects
  • Proto-Indo-European

Origin and Etymology of prot-

Greek prōt-, prōto-, from prōtos; akin to Greek pro before — more at for


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something that impedes or restrains

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