Definition of retractility in English:

retractility

noun

Zoology
  • See retractile

    • ‘Telephone cords used to connect a handset to a base should have sufficient retractility to insure that they will return in a controlled gradual manner to their normal retracted position after having been extended and released.’
    • ‘The pull cord mechanism for the self-opening umbrella constitutes at least a core tube rest, a core tube, a plurality of sheaves, a lower shaft, a center shaft and a string of pull cord, in which the center shaft contains several sections of short shaft for retractility.’

Pronunciation

retractility

/rɪtrakˈtɪlɪti/