hornblende
- n a green to black mineral of the amphibole group; consists of silicates of calcium and sodium and magnesium and iron
hornbook
- n a primer that provides instruction in the rudiments or basic skills of a branch of knowledge
horne
- n United States operatic mezzo-soprano (born 1934)
- n United States singer and actress (born in 1917)
horned asp
- n highly venomous viper of northern Africa and southwestern Asia having a horny spine above each eye
horned dinosaur
- n any of several four-footed herbivorous dinosaurs with enormous beaked skulls; of the late Cretaceous in North America and Mongolia
horned lizard
- n insectivorous lizard with hornlike spines on the head and spiny scales on the body; of western North America
horned pondweed
- n found in still or slow-moving fresh or brackish water; useful to oxygenate cool water ponds and aquaria
horned poppy
- n yellow-flowered Eurasian glaucous herb naturalized in along sandy shores in eastern North America
horned rattlesnake
- n small pale-colored desert rattlesnake of southwestern United States; body moves in an s-shaped curve
horned screamer
- n screamer having a hornlike process projecting from the forehead
horned toad
- n insectivorous lizard with hornlike spines on the head and spiny scales on the body; of western North America