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protero-

especially before a vowel, proter-.
  1. a combining form meaning “earlier,” “before,” “former,” used in the formation of compound words.

    proterotype.



protero-

combining form

  1. anterior or former in time, place, order, etc

    proterozoic

“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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Word History and Origins

Origin of protero-1

< Greek, combining form representing óٱDz, comparative formed from ó; pro- 2
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Word History and Origins

Origin of protero-1

from Greek proteros fore

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When To Use

does protero- mean?

Protero- is a combining form used like a prefix meaning “earlier," "before," or "former." It is very occasionally used in scientific terms.Protero- comes from Greek óٱDz, meaning “former” or “anterior.” The Latin cognate of óٱDz is prior “former, before,” which is the source of words such as prior and priority. To learn more, check out our entries for both words. are variants of protero-?When combined with words or word elements that begin with a vowel, protero- becomes proter-, as in proterandrous.

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proteoseproterotype