Heceleme
non re·turn valveTürkçe nasıl söylenir
nän ritırn välvTelaffuz
/ˈnän rēˈtərn ˈvalv/ /ˈnɑːn riːˈtɜrn ˈvælv/
Etimoloji
[ (')nän also "n& ] (prefix.) Middle English, from Middle French, from Latin non not, from Old Latin noenum, from ne- not + oinom, neuter of oinos one; more at NO, ONE.