slither UK /ˈslɪðə/US /ˈslɪðɚ/noun 3verb 2adjective 1forms 3 noun3 •A group of snakes.And from the hedge came the silken slither of snakes about to lather with foam and strike some legless sheep or ox left by the mutinous pack. — 1926 •(nonstandard) A sliver. •A limestone rubble. verb2 •To move about smoothly and from side to side.[Indiana:] Wave it at anything that slithers. [Marion:] The whole place is slithering! — 1981 •To slide.Some snow slides recorded have exceeded a million tons and slithered down the mountain-side at a speed of 60 miles an hour. — 1954 adjective1 •(no longer used) Slithery; slippery. formsslithered · slithering · slithers