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say it: AL-uh-mawrf
allomorph is a noun meaning "any of several different crystalline forms of the same chemical compound". It carries 2 recorded senses.
any of several different crystalline forms of the same chemical compound
“calcium carbonate occurs in the allomorphs calcite and aragonite”
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”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for allomorph come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.