Ma'anar ƙamus na kalmar "tsatsa" ita ce a rufe da tsatsa, wanda shine rufin ja-ja-jajal wanda ke samuwa a kan karfe saboda yanayin ƙarfe da oxygen a gaban ruwa ko danshi. Hakanan ana iya amfani da kalmar “tsatsa” a alamance don kwatanta wani abu da ya lalace ko kuma ya kasa yin tasiri a tsawon lokaci, kamar an rufe shi da tsatsa.