datolite /datˈə-līt/

A hydrated silicate of boron and calcium

• helmet-shell
• helmet-shells
• helming
• helminth
• helminthiases
• helminthiasis
• helminthic
• helminthoid
• helminthologic
• helminthological
• helminthologies
• helminthologist
• helminthologists
• helminthology
• helminthous
• helminths
• helmless
• helms
• helmsman
• helmsmen
• Helodea
• helot
• helotage
• helotages
• helotism