The Collaborative International Dictionary of English v.0.48:
Otalgia \O*tal"gi*a\, n. [NL., fr. Gr. ?; o'y^s, 'wto`s, the ear + 'a`lgos pain: cf. F. otalgie.] (Med.) Pain in the ear; earache. [1913 Webster]WordNet (r) 3.0 (2006):
otalgia n 1: an ache localized in the middle or inner ear [syn: earache, otalgia]