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self-changing

From Wiktionary, the free dictionary

English

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Etymology

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From self- +‎ changing.

Adjective

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self-changing (not comparable)

  1. Of a gearbox / transmission that changes gear automatically to a preselected gear.
    • 1960 September, “Inter-city diesel units for the Hull-Liverpool service of the N.E.R.”, in Trains Illustrated, page 561:
      The gearbox is of the self-changing compound epicyclic SE.4 type, with Sinclair fluid coupling, having a maximum torque of 750 lb./ft.

References

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