underside

[ uhn-der-sahyd ]
/ ˈʌn dərˌsaɪd /

noun

an under or lower side.

Origin of underside

First recorded in 1670–80; under- + side1

Example sentences from the Web for underside

British Dictionary definitions for underside

underside
/ (ˈʌndəˌsaɪd) /

noun

the bottom or lower surface