insulantadj.n.
Insulating (electrically). Obsolete. rare.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > electricity > transmission of electricity, conduction > non-conduction, insulation > [adjective]
non-conducting1751
insulating1767
insulant1803
dielectric1863
1803 Med. & Physical Jrnl. 9 239 Which so modifies the carbon as to produce a substance totally insulant.
B. n.
Any substance or medium which insulates (electrically, thermally, etc.).
ΘΚΠ
the world > matter > physics > electromagnetic radiation > electricity > transmission of electricity, conduction > non-conduction, insulation > [noun] > substance or contrivance
non-conductor1751
insulator1801
dielectric1837
bushing1839
insulation1870
sector1894
insulant1934
the world > matter > physics > electromagnetic radiation > heat > transmission of heat > [noun] > failure to conduct > substance causing
non-conductor1751
insulator1801
insulant1959
the world > matter > physics > science of sound > sound-waves > [noun] > insulation against > that which provides
insulation1927
insulator1927
insulant1971
1934 in Webster's New Internat. Dict. Eng. Lang.
1946 Electronic Engin. 18 280/1 The growth of the electronics and high frequencies industries has been phenomenal. With this growth there has been a demand for more efficient insulants.
1959 Times 27 Apr. (Rubber Industry Suppl.) p. viii/5 The best thermal insulant is a vacuum.
1959 Times 27 Apr. (Rubber Industry Suppl.) p. viii/5 Most thermal insulants..work on the principle of trapped air.
1971 Engineering Apr. 112/1 (advt.) A dense yet feather-light carpet of pure mineral fibre... A natural thermal and acoustic insulant.
This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2019).
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adj.n.1803