thermal
THUR-mul
/ˈθɜːrməl/
Relating to heat, or designed to retain warmth and prevent temperature change.
In food delivery, it describes insulated bags or containers engineered to keep hot food hot or cold food cold.
The story behind the word. Originates from ancient Greek 'therme' (heat). It entered English in the 18th century through scientific studies of thermodynamics.
Word relationships
- insulated: Insulated specifies barrier protection against heat transfer, while thermal is broader and can refer to heat itself.
- caloric: Caloric relates to energy measurement in nutrition, whereas thermal relates to physical temperature.
- cryogenic: Relating to extremely low temperatures rather than general heat preservation.
Commonly confused with
- terminal: Terminal means an end station or boundary, whereas thermal relates to heat.
Word family
- thermally (adverb): In a manner regarding heat.
Collocations
- thermal insulation
- thermal bag
- thermal imaging
- thermal regulation
Example sentences
- "The team used thermal imaging cameras to locate energy leaks throughout the historic building." Building insulation inspection
- "Couriers must keep hot dishes inside thermal bags to maintain safe serving temperatures." Food delivery equipment
Memory hook
THERMAL sounds like THERMOMETER — both measure or deal with heat! Thermal keeps the temp normal.
When not to use
Do not use to describe general weather conditions unless specifically referencing heat currents.
Fun facts
- Thermal delivery bags use multi-layered foil lining based on space suit technology developed by NASA.
Related words
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