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prot-

1.
variant of proto- before a vowel:
protamine.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for prot-

prot-

combining form
1.
a variant of proto-

proto-

combining form
1.
indicating the first in time, order, or rank: protomartyr
2.
primitive, ancestral, or original: prototype
3.
indicating the reconstructed earliest stage of a language: Proto-Germanic
4.
indicating the first in a series of chemical compounds: protoxide
5.
indicating the parent of a chemical compound or an element: protactinium
Word Origin
from Greek prōtos first, from pro before; see pro-²
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
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prot- in Medicine

prot- pref.
Variant of proto-.

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