non·con·duc·tor 
(nŏn′kən-dŭktər)
(nŏn′kən-dŭktər)n.
A material that conducts little or no electricity, heat, or sound.
- sprigger
- spright
- spright
- sprightful
- sprightliness
- sprightly
- spring
- spring a leak
- spring beauty
- springboard
- springbok
- springbuck
- spring chicken
- spring-cleaning
- springe
- spring ephemeral
- springer
- springerle
- springer spaniel
- spring fever
- Springfield
- Springfield rifle
- springform pan
- springhare
- springhead