Examples of insulator in a sentence
Metal is not a good insulator.
First Known Use of insulator
INSULATOR Defined for English Language Learners
Definition of insulator for English Language Learners
: a material that allows little or no heat, electricity, or sound to go into or out of something
INSULATOR Defined for Kids
Definition of insulator for Students
: a material (as rubber or glass) that is a poor conductor of electricity, heat, or sound
Seen and Heard
What made you want to look up insulator? Please tell us where you read or heard it (including the quote, if possible).