rule of morphology(n = noun.communication) morphological rule - a linguistic rule for the formation of words;
is a kind of linguistic rule, rule

algorithmic rule, as a rule, best evidence rule, board rule, carpenter's rule, compound morphology, derivational morphology, exclusionary rule, foot rule, gag rule, golden rule, grammatical rule, ground rule, hearsay rule, heuristic rule, home rule, inflectional morphology, linguistic rule, majority rule, miranda rule, mob rule, morphological rule, morphology, naegele's rule, one-man rule, parol evidence rule, phase rule, plumb rule, procrustean rule, rule, rule book, rule in, rule of cy pres, rule of evidence, rule of grammar, rule of law, rule of thumb, rule out, slide rule, work to rule, working rule