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watercress

(Encyclopedia)watercress, hardy perennial European herb (Nasturtium officinale) of the family Cruciferae (or Brassicaceae; mustard family), widely naturalized in North America, found in or around water. Often culti...

Carolina parakeet

(Encyclopedia)Carolina parakeet, small, long-tailed bird, Canuropsis carolinensis, now believed extinct. The Carolina parakeet was the northernmost representative of the parrot family. It had green plumage with a y...

Stiegel, Henry William

(Encyclopedia)Stiegel, Henry William stēˈgəl [key], 1729–85, American iron and glass manufacturer, b. Germany. He emigrated to America, arriving in Philadelphia (1750). In 1758 he purchased his father-in-law's...

cabbage looper

(Encyclopedia)cabbage looper, moth larva, Trichoplusia ni, that feeds by night on the leaves of cabbage and related plants and is a serious agricultural pest. Like the inchworms (of another moth family), cabbage lo...

Brown, Helen Gurley

(Encyclopedia)Brown, Helen Gurley, 1922–2012, American writer and editor, b. Green Forest, Ark. A child of poverty, she became a successful advertising copywriter and wrote the best-selling Sex and the Single Gir...

Bennington

(Encyclopedia)Bennington, town (2020 pop. 15,333), seat of Bennington co., SW Vt.; chartered 1749, settled 1761. It includes the villages of North Bennington and Old ...

bluegrass

(Encyclopedia)bluegrass, any species of the large and widely distributed genus Poa, chiefly range and pasture grasses of economic importance in temperate and cool regions. In general, bluegrasses are perennial with...

barium

(Encyclopedia)barium bârˈēəm [key] [Gr.,=heavy], metallic chemical element; symbol Ba; at. no. 56; at. wt. 137.327; m.p. 725℃; b.p. 1,640℃; sp. gr. 3.5 at 20℃; valence +2. Barium is a soft, silver-white, ...

slang

(Encyclopedia)slang, vernacular vocabulary not generally acceptable in formal usage. It is notable for its liveliness, humor, emphasis, brevity, novelty, and exaggeration. Most slang is faddish and ephemeral, but s...

Chlorophyta

(Encyclopedia)Chlorophyta klōrŏfˈətə [key], phylum (division) of the kingdom Protista consisting of the photosynthetic organisms commonly known as green algae. The organisms are largely aquatic or marine. The ...