thermos
/ˈθɜː.mɒs/US/ˈθɝ.məs/
thermos noun: a bottle, flask or similar vessel having a vacuum between its inner and outer silvered walls; designed to maintain the temperature of its contents.
Noun (1)
thermos (plural thermoses or (rare) thermoi)
- A bottle, flask or similar vessel having a vacuum between its inner and outer silvered walls; designed to maintain the temperature of its contents
- Synonyms:
- thermal flask, thermos flask, vacuum flask
Noun (2)
thermos (plural thermoi)
- A unit of measure whose identification remains very unclear.
- The mnaeion contains 4 gold pieces, 16 quarters, 64 thermoi, 128 carats. The gold piece contains 4 staters [sic for quarters], 16 thermoi, 32 carats. The thermos contains 2 carats. The quarter contains 4 thermoi, 8 carats. The thermos contains 2 carats.[…]The mnaeion has sixteen (16) quarters and...1982, “Metrology (3455–3460)”, in A[dam] Bülow-Jacobsen, J[ohn] E[dwin] G[eorge] Whitehorne, editors, The Oxyrhynchus Papyri (Graeco-Roman Memoirs; No. 69), volume XLIX, […] for the British Academy...
- 1 saton (seʾah) = 1/3 ephah (see above for correction) = 2/3 bath / mina by weight = 50 shekels / ¼ shekel = 4 thermoi / shekel = 16 thermoi and one weight (?)2005, Lawrence H[arvey] Schiffman, “Sacrificial Halakhah in the Fragments of the Aramaic Levi Document from Qumran, the Cairo Genizah, and Mt. Athos Monastery”, in Esther G[lickler] Chazon, Devorah...
Proper noun capitalized: Thermos
Thermos
thermos meaning in Hindi, Marathi, Urdu and Bengali
thermos in Hindi
- vacuum flask
- थरमस tharmas, निर्वात फ़्लास्क nirvāt flāsk
thermos in Marathi
- vacuum flask
- थरमॉस tharmŏs
thermos in Urdu
- vacuum flask
- تَھرْموس tharmos, تَھرْماس tharmās
thermos in Bengali
- vacuum flask
- থার্মোফ্লাস্ক tharmōphlasko
More languagesFewer languages
- thermos in Kannada
- ಬಿಸಿಯುಳಿಕ
- thermos in Tagalog
- termos
- thermos in Arabic
- تِرْمُس tirmus, كَظِيمَة kaẓīma
- thermos in Malay
- termos
- thermos in Indonesian
- termos
- thermos in Thai
- กระติก grà-dtìk, กระติกน้ำร้อน grà-dtìk-náam-rɔ́ɔn
- thermos in Vietnamese
- phích, bình thuỷ, phích nước
- thermos in Myanmar
- ဓာတ်ဘူး dhatbhu:, ရေနွေးဘူး re-nwe:bhu:
Synonyms of thermos
- thermal flask
- thermos flask
- vacuum flask
- Thermon
- Thermum
Forms of thermos
| plural | thermoses |
|---|---|
| alternative form | Thermos |
| plural | thermoi |
| plural (rare) | thermoi |
Origin of thermos
Genericization of the trademark Thermos, from Ancient Greek θερμός (thermós, “warm”). Possibly related to English warm.
Borrowed from Ancient Greek θέρμος (thérmos).
Transliteration of Ancient Greek Θέρμος (Thérmos).
Words formed from thermos
Questions about thermos
- What does thermos mean?
- Thermos means a bottle, flask or similar vessel having a vacuum between its inner and outer silvered walls; designed to maintain the temperature of its contents.
- What is thermos in Hindi?
- Thermos in Hindi is थरमस (tharmas), निर्वात फ़्लास्क (nirvāt flāsk). See Thermos meaning in Hindi.
- What part of speech is thermos?
- Thermos can be a noun or a proper noun.
- How do you pronounce thermos?
- Thermos is pronounced /ˈθɜː.mɒs/ (UK).
- What is the plural of thermos?
- The plural of thermos is thermoses.
Words near thermos in the dictionary
Source and license
Adapted from Wiktionary: thermos (page history and authors); Thermos (page history and authors); thermos (Kannada Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-thermos.wav.
Cite this entry: “thermos.” Word.ws, https://word.ws/thermos. Based on Wiktionary, CC BY-SA 4.0.