dissimilation

Noun dissimilation has 2 senses

• dissimilation(n = noun.process) - a linguistic process by which one of two similar sounds in a word becomes less like the other; "the Old French MARBRE became the English MARBLE by dissimilation"
is a kind of linguistic process
Derived forms verb dissimilate₃, verb dissimilate₁

• dissimilation(n = noun.process) catabolism, destructive metabolism, katabolism - breakdown in living organisms of more complex substances into simpler ones together with release of energy;
is a part of metabolic process, metabolism
is a kind of biological process, organic process