8-Letter Words Starting S & Ending UM

• any of various pale or ashy mosses of the genus Sphagnum whose decomposed remains form peat

• a marginal note written by a scholiast (a commentator on ancient or classical literature)

• the fleshy multiple fruit of the fig consisting of an enlarged hollow receptacle containing numerous fruitlets

• an ordered array of the components of an emission or wave

• a broad range of related objects or values or qualities or ideas or activities

• a mirror (especially one made of polished metal) for use in an optical instrument

• a medical instrument for dilating a bodily passage or cavity in order to examine the interior

• small pointed structure serving as a skeletal element in various marine and freshwater invertebrates e.g. sponges and corals

• a white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite

• a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite