To insulate something is to cover it with a material or substance that will prevent it from getting cold or wet. insulation can be used to protect things from the cold, the heat, or both.

  • The house was insulated with foam insulation, which protected it from the cold.

  • The insulation in the walls prevented the house from getting too hot.

Definition of insulate


place or set apart




protect from heat, cold, or noise by surrounding with insulating material

Nearby Words

insulate Pronunciation in a video

Example Sentences for insulate

  • 1

    The wooden handles insulate the hand from the heat conducting metal.

  • 2

    Sawdust was used in the icehouse as an insulator.

  • 3

    Cleanliness of the insulation remains imperative.

  • 4

    The formation of a supercontinent insulates the mantle.

  • 5

    THe insulation and the steel will melt very quickly.

  • 6

    Extreme ideologies exist in insulated vacuums.

  • 7

    A first screen envelopes the insulation of the conductor.

  • 8

    The first is the question of insulating a floor slab.

  • 9

    The insulation is continuous throughout the wall section.

  • 10

    The iron was varnished to insulate it from the windings.