Obs. [a. Gr. κλῑμακτήρ round of a ladder, definite or critical period of a man’s life, f. κλίμαξ ladder + -τηρ suffix of agent and agency.] A CLIMACTERIC year or epoch.

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1609.  C. Butler, Fem. Mon. (1634), 30. The sixty-third year of man’s age … called climactericall (because it ariseth of nine Septenaries, as so many Climacters or Ladder-rounds).

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1643.  Sir T. Browne, Relig. Med., I. (1656), § 28. In his yeares there is no Climacter, his duration is eternity.

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1656.  Blount, Glossogr., Climacter, the perillous time of mans life, at every seven or nine years end.

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