superinsulated

adjective
su·​per·​in·​su·​lated | \ ˌsü-pər-ˈin(t)-sə-ˌlā-təd How to pronounce superinsulated (audio) \

Definition of superinsulated

: very thoroughly insulated superinsulated houses a superinsulated cover

First Known Use of superinsulated

1843, in the meaning defined above

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