MYALGIA Meaning of MYALGIA in English [ mʌɪ'aldʒə ]■ noun pain in a muscle or group of muscles.Derivativesmyalgic adjective OriginC19: mod. L., from Gk mus 'muscle' + -algia . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004