Pronunciation (UK) IPA (key): ˈmaʊsəʊvə (US) IPA (key): ˈmousˌōvər Hyphenation: mouse‧o‧ver Audio (UK)(file) Noun Singular mouseover Plural mouseovers (computing) A mouseover is when the cursor of a mouse is hovered (or moved) over a certain point on the screen. The computer will make a noise on the mouseover.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads