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language acquisition

(Encyclopedia)language acquisition, the process of learning a native or a second language. The acquisition of native languages is studied primarily by developmental psychologists and psycholinguists. Although how c...

reading, mental process

(Encyclopedia)reading, process of mentally interpreting written symbols. Facility in reading is an essential factor in educational progress, and instruction in this basic skill is a primary purpose of elementary ed...

wings

(Encyclopedia)CE5 A. Structure of a bird wing B. Structure of a bat wing wings, flight organs of the bird, the bat, and the insect. Birds' wings are pectoral appendages that are basically the same in skeletal...

flag, symbolic cloth

(Encyclopedia)flag, piece of cloth, usually bunting or similar light material, plain, colored, or bearing a device, varying in size and shape, but often oblong or square, used as an ensign, standard, or signal or f...

columnist

(Encyclopedia)columnist, the writer of an essay appearing regularly in a newspaper or periodical, usually under a constant heading. Although originally humorous, the column in many cases has supplanted the editoria...

Tanglewood Music Festival

(Encyclopedia)Tanglewood Music Festival, formerly the Berkshire Festival (until 1984), summer music festival held since 1937 at “Tanglewood,” a former estate in the adjoining towns of Stockbridge and Lenox, Mas...

hawk

(Encyclopedia)hawk, name generally applied to the smaller members of the Accipitridae, a heterogeneous family of diurnal birds of prey, such as the eagle, the kite, and the Old World vulture. Hawks belong to the sa...

boa

(Encyclopedia)boa bōˈə [key], name for live-bearing constrictor snakes of the family Boidae, found mostly in the Americas. This family, which also comprises the egg-laying pythons of the Old World, includes the ...

Buckingham, George Villiers, 1st duke of

(Encyclopedia)Buckingham, George Villiers, 1st duke of vĭlˈyərz, bŭkˈĭng-əm [key], 1592–1628, English courtier and royal favorite. He arrived (1614) at the English court as James I was tiring of his favori...

Alzheimer's disease

(Encyclopedia)Alzheimer's disease ălsˈhīˌmərz, ôls– [key], degenerative disease of nerve cells in the cerebral cortex that leads to atrophy of the brain and senile dementia and, ultimately, death. The disea...