Definition from Wiktionary, the free dictionary
cedilla (plural cedillas)
|¸ Ç ç|
- (orthography) In the spelling of Catalan, French, Portuguese and some other languages, a mark sometimes placed under the letter c to indicate that it is pronounced /s/ rather than /k/, as in French menaçant and Portuguese almoço, and also used in various other languages to change the sounds of other letters.
mark placed under the letter c