Crystallisation Period

A period in a person’s life—which usually occurs between ages of 35 and 45, during which a person takes serious account of himself, his accomplishments to date, lack of progress, mistakes made and experience
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
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In a way I'm rather sad tennis will be played at Wimbledon again in a few weeks, although admittedly holding the Olympics event on the outside courts at Edgbaston Priory might not have been sufficiently auspicious, because this year's tournament deserves the customary 12-month crystallisation period in which to pass into folklore.