Standard Lemma guide

therm

noun · verb · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /θɜːm/
  • General-American: /θɝm/
  • rhymes with -ɜː(ɹ)m
  • CMU ARPABET: TH ER1 M Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A unit of heat equal to 100,000 British thermal units, often used in the context of natural gas.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

verb

Meaning 2

A technique used by woodturners to simultaneously create multiple copies of spindles and table legs.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

a unit of heat equal to 100,000 British thermal units

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: work unit, heat unit, energy unit

History

Etymology

1920s, from Ancient Greek θερμός (thermós, “heat”). See also thermo-, -thermic, etc.

Probably from English Hermes or English Terminus, ancient Gods whose statues would often have decoration characteristic of thermed work around their bases.