Insulation
来自Big Physics
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mid 16th century (in insulate (sense 2)): from Latin insula ‘island’ + -ate3.
wiktionary
insulate + -ion
etymonline
insulation (n.)
noun of action from insulate (v.) in its various senses. From 1767 as "a blocking from electricity or heat" (by interposition of a non-conductor). Sense of "state or action of being detached from others" is from 1798. Literal meaning "act of making (land) into an island" is from 1784; that of "state of being an island" is from 1799. The concrete sense of "insulating material" is recorded by 1870.
