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


Seen and Heard

What made you want to look up Prot? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

custom-made

Get Word of the Day daily email!

Test Your Vocabulary

What's That From? A Word Origin Quiz

  • turris-babel-by-athanasius-kircher
  • What language gave the word robot to English?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!