monosodium glutamate
Concise Oxford English Dictionary © 2008 Oxford University Press:
monosodium glutamate/mɒnəsəʊdiəmˈɡluːtəmeɪt/
▶noun a compound which occurs naturally as a breakdown product of proteins and is used as a flavour enhancer in food.
'monosodium glutamate' also found in these Oxford entries:

