non-defining
adjective /ˌnɒn dɪˈfaɪnɪŋ/
/ˌnɑːn dɪˈfaɪnɪŋ/
(also non-restrictive)
(grammar)- (of relative clauses ) giving extra information about a noun phrase, inside commas in writing or in a particular intonation in speech. In ‘My brother, who lives in France, is coming to Rome with us’, the part between the commas is a non-defining relative clause.Topics Languagec1