Standard Lemma guide

thermal

adj · name · noun · verb · 14 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.

  • Australian, Received-Pronunciation: /ˈθɜːməl/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • Canada, General-American: /ˈθɝməl/
  • rhymes with -ɜː(ɹ)məl
  • CMU ARPABET: TH ER1 M AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Pertaining to heat or temperature.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Providing efficient insulation so as to keep the body warm.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Qualifier: fabric

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Caused or brought about by heat.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adj

Meaning 4

Having a rough finish from treatment with a blowtorch.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: business, construction, manufacturing, masonry, stone

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

name

Meaning 5

A census-designated place in Riverside County, California, United States.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

A column of rising air in the lower atmosphere created by uneven heating of a planet's surface.

Definition source: English Wiktionary via Wiktextract

Topics: climatology, meteorology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

FLIR.

Definition source: English Wiktionary via Wiktextract

Topics: government, military, politics, war

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

thermocline.

Definition source: English Wiktionary via Wiktextract

Topics: nautical, transport

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

verb

Meaning 9

To create a rough finish on stone by treating it with a high-temperature blowtorch.

Definition source: English Wiktionary via Wiktextract

Topics: business, construction, manufacturing, masonry, stone

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

verb

Meaning 10

To fly an unpowered aircraft in a thermal (column of rising air).

Definition source: English Wiktionary via Wiktextract

Qualifier: gliding; often in the present participle; gliding; often in the present participle

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

adjective

Meaning 11

of or relating to a hot spring

Definition source: Princeton WordNet 3.0

Examples

  • thermal water

Meaning relationships

Synonyms: none provided

Antonyms: none provided

12

adjective

Meaning 12

relating to or associated with heat

Definition source: Princeton WordNet 3.0

Examples

  • thermal movements of molecules
  • thermal capacity
  • thermic energy
  • the caloric effect of sunlight

Meaning relationships

Synonyms: thermic, caloric

Antonyms: nonthermal

13

adjective satellite

Meaning 13

caused by or designed to retain heat

Definition source: Princeton WordNet 3.0

Examples

  • a thermal burn
  • thermal underwear

Meaning relationships

Synonyms: none provided

Antonyms: none provided

14

noun

Meaning 14

rising current of warm air

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: wind, air current, current of air

History

Etymology

From French thermal, from New Latin *thermalis, from Ancient Greek θέρμη (thérmē, “heat”), from Proto-Indo-European *gwher- (“to heat, warm”).

Across languages

Translations

41 source translations are retained for this English entry.

  • Bulgarian: топлинен (toplinen) — pertaining to heat or temperature
  • Bulgarian: термичен (termičen) — pertaining to heat or temperature
  • Danish: termisk — pertaining to heat or temperature
  • Finnish: lämpö- — pertaining to heat or temperature
  • Finnish: terminen — pertaining to heat or temperature
  • French: thermique — pertaining to heat or temperature
  • Galician: termal — pertaining to heat or temperature
  • German: thermisch — pertaining to heat or temperature
  • Ido: termala — pertaining to heat or temperature
  • Indonesian: termal — pertaining to heat or temperature
  • Indonesian: termis — pertaining to heat or temperature
  • Irish: teirmeach — pertaining to heat or temperature
  • Italian: termico — pertaining to heat or temperature
  • Malay: terma — pertaining to heat or temperature
  • Marathi: औष्णिक (auṣṇik) — pertaining to heat or temperature
  • Norwegian Bokmål: termisk — pertaining to heat or temperature
  • Norwegian Nynorsk: termisk — pertaining to heat or temperature
  • Portuguese: térmico — pertaining to heat or temperature
  • Portuguese: termal — pertaining to heat or temperature
  • Romanian: termal — pertaining to heat or temperature
  • Romanian: termic — pertaining to heat or temperature
  • Russian: теплово́й (teplovój) — pertaining to heat or temperature
  • Russian: терма́льный (tɛrmálʹnyj) — pertaining to heat or temperature
  • Russian: терми́ческий (termíčeskij) — pertaining to heat or temperature
  • Spanish: termal — pertaining to heat or temperature
  • Swedish: termisk — pertaining to heat or temperature
  • Finnish: lämpö- — providing efficient insulation so as to keep the body warm
  • Finnish: terminen — providing efficient insulation so as to keep the body warm
  • French: thermique — providing efficient insulation so as to keep the body warm
  • Spanish: termal — providing efficient insulation so as to keep the body warm
  • French: thermique — caused, brought about by heat
  • Italian: termico — caused, brought about by heat
  • Portuguese: térmico — caused, brought about by heat
  • Spanish: térmico — caused, brought about by heat
  • Dutch: thermiek — column of rising air
  • Finnish: termiikki — column of rising air
  • French: thermique — column of rising air
  • German: Thermik — column of rising air
  • Italian: corrente ascensionale — column of rising air
  • Romanian: curent ascensional — column of rising air
  • Romanian: curent ascendent — column of rising air
Real reading context

thermal in complete knowledge articles