Definition of "involutes" [involutes]

• Plural form of involute. (noun)
• Third-person singular simple present indicative form of involute. (verb)

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• "But after about age 40, the thymus "involutes" - or shrinks and ceases to function."
• "She claimed that in childhood, new T cells are continually produced in the thymus, but after about age 40, the thymus "involutes" - or shrinks and ceases to function."
• "De Quincey remarks that impressions do not come to us singly, be it a lightning bolt or sunshine: they are bound up in compound experiences which he calls 'involutes' -- patterns that spiral inwards like the stairwells in Piranesi's dungeons."