allomorph

英 ['æləmɔːf] 美 ['æləmɔːrf]

• n. 同质异晶；语素变体

英英释义

Noun:

1. any of several different crystalline forms of the same chemical compound;

   "calcium carbonate occurs in the allomorphs calcite and aragonite"
   

2. 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"