fricative
Concise Oxford English Dictionary © 2008 Oxford University Press:
fricative /ˈfrɪkətɪv/ Phonetics
▶adjective denoting a type of consonant (e.g. f and th) made by the friction of breath in a narrow opening. ▶noun a fricative consonant.
– origin C19: from mod. L. fricativus, from L. fricare ‘to rub’.
'fricative' also found in these Oxford entries:

