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- pronunciation:
- thur
m
 l
- features:
- Word Explorer, Word Parts
| part of speech: |
adjective |
| definition 1: |
using, resulting from, or producing heat.
Thermal currents in the air lifted the hawk higher and higher. |
| definition 2: |
made to hold in heat.
Skiers wear thermal underwear to stay warm. |
| derivation: |
thermally (adv.) |
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