pumplessadj.
/ˈpʌmpləs/, U.S. /ˈpəmpləs/ Without a pump; that has no pump.
ΚΠ
1871 Evening Gaz. (Port Jervis, N.Y.) 11 Mar. The peddler pulled out his pump, and decamped, leaving on the old lady's hands a disconsolate daughter and a pumpless well.
1899 Daily News 9 Nov. 8/1 The majority depend upon pumpless wells.
1938 Lowell (Mass.) Sun 12 Mar. 3/5 The 600-gallon pump..will replace the last of the old pumpless hose wagons.
1967 Jrnl. Pediatrics 70 425/1 In a previous report a simple, small-volume, plastic, disposable, pumpless oxygenator was described.
2002 St. Petersburg (Florida) Times (Nexis) 14 Sept. 3 d I started experimenting with pumpless, filterless goldfish bowls.
This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022).
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adj.1871