epididymite

noun
ep·​i·​did·​y·​mite | \ -ˈdidəˌmīt\
plural -s

Definition of epididymite

: a silicate NaBeSi3O7(OH) of sodium and beryllium

History and Etymology for epididymite

German epididymit, from epi- + -didymit (as in eudidymit eudidymite)

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