thermoi

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A form of thermos — A bottle, flask or similar vessel having a vacuum between its inner and outer silvered walls; designed to maintain the temperature of its contents

OriginAncient Greek θέρμοι →
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Meanings

thermoi1

noun
  1. pluralplural of thermos (“unit of measure”)

thermoi2

noun
  1. pluralrareplural of thermos (“flask”)

    After lunch Arthur and I set off with baskets of food and thermoi.

    1922, C.S. Lewis, All my road before me: the diary of C.S. Lewis, 1922-1927, published 1992, page 71
    2 more examples

    I brewed coffee black as a dog, and made it growl and bark with cognac. I took the two big thermoi (?)^([sic]) and kenneled it safely[…]

    1971, Anthony Burgess, M/F, page 61

    […]we select some high place upon which we can eat undisturbed, and we then proceed to lug hampers, cushions, rugs, sunshades, thermoi and two buckets of beer upon ice up a gradient that the Gadarene swine would have refused.

    2011, Dornford Yates, The House That Berry Built, page 4

Origin

thermoi · noun

  1. Ancient Greekθέρμοι
  2. Englishthermoi

From Ancient Greek θέρμοι (thérmoi).

More words from Ancient Greek

Full word history & related roots →

thermoi · noun

  1. Ancient Greekθερμοί
  2. Englishthermoi

Equivalent to Ancient Greek θερμοί (thermoí), plural of θερμός (thermós, “warm”).

More words from Ancient Greek

Full word history & related roots →

Rhymes & wordplay

Anagrams

thiomermoithermohrite
Cite this entry
APA

thermoi. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/thermoi

MLA

“thermoi.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thermoi. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “thermoi,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/thermoi.

Source: thermoi on Wiktionary, CC BY-SA 4.0.