climacterium
noun
cli·mac·te·ri·um
| \ ˌklī-ˌmak-ˈtir-ē-əm
\
\
plural climacteria\ -ē-ə
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Medical Definition of climacterium
: the bodily and mental changes (as in reproductive and endocrine function) occurring during the latter part of middle age
specifically
: menopause and the bodily and psychological changes that accompany it