dissimilation

• Substantivo que designa o processo pelo qual elementos semelhantes se tornam menos parecidos; usado na linguística para descrever mudanças sonoras e na biologia para o desdobramento metabólico de substâncias complexas em mais simples com liberação de energia.

A noun referring to a process in which similar elements become less alike, used in linguistics for sound changes and in biology for the metabolic breakdown of complex substances into simpler ones with energy release.

1. Linguistic processC1formal

   A change in speech sounds where one of two similar or identical sounds in a word becomes different or less like the other, often to make pronunciation easier.

   Processo linguístico

   • The change from Latin 'peregrinus' to Italian 'pellegrino' shows dissimilation of the first 'r' to 'l'.
   • Dissimilation often occurs in languages to avoid repeating the same sound.
   • The word 'marble' comes from Latin 'marmor' through a process of dissimilation.

2. Biological processC1formalscientific

   The metabolic breakdown of complex substances within living organisms into simpler compounds, which releases energy.

   Dissimilação

   • Cellular respiration is a key example of dissimilation in animals.
   • During dissimilation, nutrients are broken down to provide energy for the organism.
   • Plants also undergo dissimilation, especially at night when they break down stored starches.

   Sinônimoscatabolismkatabolism

   Antônimosassimilation