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dissimilation

[dih-sim-uh-ley-shuh n] /dɪˌsɪm əˈleɪ ʃən/
noun
1.
the act of making or becoming unlike.
2.
Phonetics. the process by which a speech sound becomes different from or less like a neighboring sound, as pilgrim
[pil-grim] /ˈpɪl grɪm/ (Show IPA)
from Latin peregrīnus
[per-e-gree-noo s] /ˌpɛr ɛˈgri nʊs/ (Show IPA)
and purple
[pur-puh l] /ˈpɜr pəl/ (Show IPA)
from Old English purpure
[poo r-poo-re] /ˈpʊər pʊ rɛ/ (Show IPA)
or disappears entirely because of a like sound in another syllable, as in the pronunciation
[guhv-uh-ner] /ˈgʌv ə nər/ (Show IPA)
for governor.
Compare assimilation (def 7).
3.
Biology, catabolism.
Origin
1820-1830
1820-30; dis-1 + (as)similation
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for dissimilation

dissimilation

/ˌdɪsɪmɪˈleɪʃən/
noun
1.
the act or an instance of making dissimilar
2.
(phonetics) the alteration or omission of a consonant as a result of being dissimilated
3.
(biology) a less common word for catabolism
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Value for dissimilation

16
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