zipper-foothttp://www.oed.com/dictionary/zipper-foot_n%3Ftab%3Dmeaning_and_usezipper foot, n.
First published 2021

zipper footnoun

  1. 1938–
    A type of sewing machine foot (see foot n. A.IV.11d) designed for sewing zips into clothing, etc.
    1. 1938
      The following practical Christmas presents may be purchased here..: zipper feet for White or Singer machines, self-wringing mops, etc.
      Republican-Courier (Findlay, Ohio) 20 December 7 (advertisement)
    2. 1991
      All the machines except the new Home JA1508 have a zipper foot that can be shifted from left to right of the needle.
      Which? October 593/1
    3. 2013
      An invisible zipper foot is different from a regular zipper foot because it has grooves in the bottom for the zipper teeth to slide through and it allows the needle to get much closer to the teeth than a regular zipper foot does.
      J. Giammalva, Essent. A-line 17

Originally published as part of the entry for zipper, n.

zipper foot, n. was first published in 2021.