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definitions

mid-

  1. a combining form representing mid1 in compound words: midday; mid-Victorian.

Origin of mid-

Middle English, Old English; see mid1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for mid-

mid-

combining form
  1. indicating a middle part, point, time, or positionmidday; mid-April; mid-Victorian

Word Origin for mid-

Old English; see middle, mid 1
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
mid- in Medicine

mid-

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