any of various devices, as a small stove, for keeping one's feet warm.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use foot warmer in a sentence
Another option is foot warmers that work like a heating pad.
Next, don’t underestimate the power of hand and foot warmers.How to stay warm while sleeping in the frigid outdoors | Alisha McDarris | February 12, 2021 | Popular-Science
This picture (which is signed on the side of the foot-warmer) is a capital example of the artist.
Heaven help him among such a horde of cruel hearts; I must at any risk go down and get a foot warmer.A Romance of Toronto | Annie Gregg Savigny
But nurses are very fond of heating the foot-warmer at night, and of neglecting it in the morning, when they are busy.Notes on Nursing | Florence Nightingale
As soon as I was up I went into the linen-room, where I found her installed at work, with a foot-warmer under her feet.The Works of Guy de Maupassant, Vol. 1 (of 8) | Guy de Maupassant
Pinocchio falls asleep with his feet on a foot warmer, and awakens the next day with his feet all burned off.The Adventures of Pinocchio | C. Collodi--Pseudonym of Carlo Lorenzini