handstone noun2 •A mano.Cornsilk slammed her handstone down into the meal. — 1997 •Any of various other handheld stone tools.I believe if we refer to these poems that the accounts before us of a stone implement called the champion handstone, Leacan Laoich Milidh and Lia Lamha Laich, will closely tally with this object. — 1891 formshandstones