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all-

See more synonyms on Thesaurus.com
  1. variant of allo- before a vowel: allonym.

allo-

  1. a combining form meaning “other,” used in the formation of compound words (allotrope) and in chemistry to denote the more stable of two geometric isomers.
Also (except in chemistry) especially before a vowel, all-.

Origin of allo-

< Greek, combining form of állos other; cognate with Latin alius, else
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for all-

all-

combining form
  1. a variant of allo-

allo-

before a vowel all-

combining form
  1. indicating difference, variation, or oppositionallopathy; allomorph; allophone; allonym

Word Origin

from Greek allos other, different
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 all-

allo-

word-forming element meaning "other," from Greek allo-, comb. form of allos "other, different" (see alias (adv.)).

Online Etymology Dictionary, © 2010 Douglas Harper

all- in Medicine

all-

pref.
  1. Variant ofallo-

allo-

pref.
  1. Other; different:allotransplantation.
  2. Isomeric:allomorphism.