First Known Use: 1907
Dictionary
thermos
noun ther·mos \ˈthər-məs\
: a container that keeps liquids hot or cold for long periods of time
Full Definition of THERMOS
: a container (as a bottle or jar) with a vacuum between an inner and outer wall used to keep material and especially liquids either hot or cold for considerable periods
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Origin of THERMOS
from Thermos, a trademark
THERMOS Defined for Kids
thermos
noun ther·mos \ˈthər-məs\
Definition of THERMOS for Kids
: a container (as a bottle or jar) that has a vacuum between an inner and an outer wall and is used to keep liquids hot or cold for several hours
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