C clef

noun Music.

a clef that, according to its position, locates middle C on the first, third, or fourth line of the staff.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for c clef

C clef

noun

music a symbol (), placed at the beginning of the staff, establishing middle C as being on its centre lineSee alto clef, soprano clef, tenor clef

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