A variety of pseudomorph which has undergone partial or complete change or substitution of material; -- thus limonite is frequently an allomorph after pyrite.

Each of two or more differing phonological manifestations of a given mor­pheme. Example: the es in boxes and the en in oxen are allomor­phs of the plural morpheme.

a variant phonological representation of a morpheme; "the final sounds of `bets' and `beds' and `horses' and `oxen' are allomorphs of the English plural morpheme"

Cf. allophone. A variant form of a morpheme: and -es are allomorphs of the Spanish plural morpheme.

The variation of sounds, or phonemes, used with the same morpheme. In English, the morpheme “-ed” varies phonetically based on its use. Example:“married” ⇒ //“picked” ⇒ //“handed” ⇒ /É(tm)d

An alternative manifestation of a morpheme (a set of meaningful linguistic units). Allomorphs vary in shape or pronunciation according to their conditions of use, but not as to meaning. In English, the negative prefix in has several allomorphs, such as INcapable, ILlogical, IMprobable, IRreverent.

A morph that is identified as a member of a morpheme, that is its function and all its properties have been determined.

This article is about a lingustic term. See Pseudomorph for another meaning of the word. ---- An allomorph is a linguistics term for a variant form of a morpheme. The concept occurs when a unit of meaning can vary in sound (phonologically) without changing meaning.