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definitions

prot-

  1. variant of proto- before a vowel: protamine.

Prot.

  1. Protestant.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples of prot

British Dictionary definitions for prot

prot-

combining form
  1. a variant of proto-

Prot.

abbreviation for
  1. Protestant
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for prot

Prot

n.

colloquial shortening of Protestant (n.), used by Catholics, often contemptuous.

Online Etymology Dictionary, © 2010 Douglas Harper
prot in Medicine

prot-

pref.
  1. Variant ofproto-
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.