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iron

(Encyclopedia)iron, metallic chemical element; symbol Fe [Lat. ferrum]; at. no. 26; at. wt. 55.845; m.p. about 1,535℃; b.p. about 2,750℃; sp. gr. 7.87 at 20℃; valence +2, +3, +4, or +6. Iron is biologically s...

Keeshond

(Encyclopedia)Keeshond kāsˈhŏnd [key] (pl. Keeshonden), breed of medium-sized nonsporting dog raised in Holland for several hundred years and introduced into England in the year 1900. It stands about 18 in. (46 ...

Maris

(Encyclopedia)Maris mäˈrĭs [key], three Dutch painters, who were brothers. Jacob or Jakob Maris, 1837–99, the most celebrated, painted domestic interiors but is particularly famous for his vigorous landscapes ...

kinglet

(Encyclopedia)kinglet, common name for members of a subfamily of five species of Old and New World warblers, similar to the thrushes and the Old World flycatchers. Kinglets are small birds (4 in./10 cm) with soft, ...

herbarium

(Encyclopedia)herbarium, collection of dried and mounted plant specimens used in systematic botany. To preserve their form and color, plants collected in the field are spread flat in sheets of newsprint and dried, ...

grunt

(Encyclopedia)grunt, common name for members of the family Haemulidae, carnivorous fish of warm seas, most species of which are small and brightly colored. They are sound-producers, creating their noises by grindin...

Gesualdo, Carlo

(Encyclopedia)Gesualdo, Carlo kärˈlō jāzo͞oälˈdō [key], Prince of Venosa, c.1560–1613, Italian composer. Gesualdo's first musical work was published in 1585. His complex later madrigals, contained in the ...

froghopper

(Encyclopedia)froghopper or spittlebug, small, hopping insect of the order Homoptera. The adult, under 1⁄2 in. (1.2 cm) long in most species, is triangular in shape and usually gray or dull green to brown. Most f...

hydrogen sulfide

(Encyclopedia)hydrogen sulfide, chemical compound, H2S, a colorless, extremely poisonous gas that has a very disagreeable odor, much like that of rotten eggs. It is slightly soluble in water and is soluble in carbo...

hybrid

(Encyclopedia)hybrid hīˈbrĭd [key], term applied by plant and animal breeders to the offspring of a cross between two different subspecies or species, and by geneticists to the offspring of parents differing in ...