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jackrabbit

(Encyclopedia)jackrabbit, popular name for several hares of W North America, characterized by very long legs and ears. Jackrabbits are powerful jumpers and fast runners. In normal progress leaps are alternated with...

horehound

(Encyclopedia)horehound, aromatic Old World perennial herb (Marrubium vulgare) of the family Labiatae (mint family), naturalized in North America. It has woolly white foliage and tiny white clustered flowers and is...

Bahr el Jebel

(Encyclopedia)Bahr el Jebel bäˈhər ĕl jĕbˈĕl [key], river, 594 mi (956 km) long, section of the White Nile, central South Sudan, Africa. The name is usually used for the White Nile between Nimule, where it e...

pyroxene

(Encyclopedia)pyroxene pīˈrŏksēn [key], name given to members of a group of widely distributed rock minerals called metasilicates in which magnesium, iron, and calcium, often with aluminum, sodium, lithium, man...

Spotted swine

(Encyclopedia)Spotted swine, breed that is predominantly black with many white spots. Except for its additional white coloring, it is much like the Poland China swine, which together with Gloucester Old Spot hogs f...

Thomas, Helen Amelia

(Encyclopedia)Thomas, Helen Amelia, 1920–2013, American journalist, b. Winchester, Ky., grad Wayne State Univ. (B.A., 1942). The daughter of Lebanese immigrants, she was a pioneering woman journalist in an era do...

color index

(Encyclopedia)color index, in astronomy, difference in an object's brightness as recorded between any two well-defined bands of the electromagnetic spectrum by using optical filters of different colors. If blue and...

English springer spaniel

(Encyclopedia)English springer spaniel, breed of medium-sized sporting dog developed in England from the broader and very old category of “springing spaniels” that produced many of the present-day land spaniels...

palomino horse

(Encyclopedia)palomino horse, American light horse that, contrary to popular opinion, is not a breed but a color type. The palomino is a characteristic golden, creamy tan, with an almost white mane and tail. White ...

Spectral Classes for Main Sequence Stars (table)

(Encyclopedia)Characteristics of Spectral Classes for Main Sequence Stars ...