Definition of palatalize in English:

palatalize

(also palatalise)

verb

[WITH OBJECT]Phonetics
  • 1 Make (a speech sound) palatal, especially by changing a velar to a palatal by moving the point of contact between tongue and palate further forward in the mouth.

    ‘the sound is palatalized in some dialects’
    • ‘These transformations have led, in fact, to some of the most distinguishing characteristics of the different branches of the IE family (e.g. the ‘soft’ palatalized consonants in the Slavic languages).’
    • ‘Elsewhere, when followed by unstressed i and another vowel, t is commonly palatalized to produce the voiceless palato-alveolar fricative sh sound.’
    • ‘Palatalized and plain consonants do not contrast in words with non-pharyngeal vowels.’
    • ‘It has the soft, palatalized value /s/ before e, i, y: cell, city, cite, cycle, fancy.’
    • ‘Such consonants are phonetically palatalized, and in the International Phonetic Alphabet they are indicated by a superscript 'j'.’
    1. 1.1[no object](of a speech sound) become palatal.
      ‘the frontal allophone of ‘g’ appears to have palatalized first’
      • ‘The view that it is these clusters that palatalized first is supported by Rumanian data.’
      • ‘In reality k palatalized first into k@.’

Pronunciation:

palatalize

/ˈpalətəlʌɪz/