Term: silica: a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite
Broader: matter: that which has mass and occupies space | Unrelated: drepanis: a genus of Drepanididae
Broader: matter: that which has mass and occupies space | Unrelated: glomerulonephritis: nephritis marked by inflammation of the glomeruli of the kidney; characterized by decreased production of urine and by the presence of blood and protein in the urine and by edema
Broader: matter: that which has mass and occupies space | Unrelated: hairy willowherb: plant of Europe and Asia having purplish-red flowers and hairy stems and leaves; introduced into North America
Broader: matter: that which has mass and occupies space | Unrelated: outfall: the outlet of a river or drain or other source of water
Broader: matter: that which has mass and occupies space | Unrelated: photoelectricity: electricity generated by light or affected by light
Broader: matter: that which has mass and occupies space | Unrelated: circadian rhythm: a daily cycle of activity observed in many living organisms
Broader: matter: that which has mass and occupies space | Unrelated: nebula: a medicinal liquid preparation intended for use in an atomizer
Broader: matter: that which has mass and occupies space | Unrelated: pinon pine: a small two-needled or three-needled pinon of Mexico and southern Texas
Broader: matter: that which has mass and occupies space | Unrelated: common fraction: the quotient of two integers
Broader: matter: that which has mass and occupies space | Unrelated: labiatae: a large family of aromatic herbs and shrubs having flowers resembling the lips of a mouth and four-lobed ovaries yielding four one-seeded nutlets and including mint; thyme; sage; rosemary