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cankerworm

(Encyclopedia)cankerworm, name for two destructive inchworms, or larvae of geometrid moths. The spring cankerworm (Paleacrita vernata) and the fall cankerworm (Alsophila pometaria) are named for the seasons at whic...

triggerfish

(Encyclopedia)triggerfish, any of several species of tropical reef fishes with laterally compressed bodies, heavy scales, and tough skins. They are named for the mechanism of the three spines of the dorsal fin: whe...

Betzig, Robert Eric

(Encyclopedia)Betzig, Robert Eric, 1960–, American physicist, b. Ann Arbor, Mich., Ph.D. Cornell, 1988. Betzig worked at AT&T Bell Laboratories from 1988 to 1996, when he become vice president of research and...

yew

(Encyclopedia)yew, name for evergreen trees or shrubs of the genus Taxus, somewhat similar to hemlock but bearing red berrylike fruits instead of true cones. Of somber appearance, with dark green leaves, the yew si...

roulette

(Encyclopedia)roulette ro͞olĕtˈ [key], game of chance popular in gambling casinos, and in a simplified form elsewhere. In gambling houses the roulette wheel is set in an oblong table. Its outer area is marked of...

piculet

(Encyclopedia)piculet pĭkˈyələt [key], common name for a small bird of the family Picidae, which includes the woodpecker and the wryneck. Like the true woodpeckers, piculets are large-headed and have long, stic...

shrub

(Encyclopedia)shrub, any woody, perennial, bushy plant that branches into several stems or trunks at the base and is smaller than a tree. Shrubs are an important feature of permanent landscape planting, being used ...

cuesta

(Encyclopedia)cuesta kwĕsˈtə [key], asymmetric ridge characterized by a short, steep escarpment on one side, and a long, gentle slope on the other. The steep side exposes the edge of erosion-resistant rock layer...

Juvenal

(Encyclopedia)Juvenal (Decimus Junius Juvenalis) jo͞oˈvənəl [key], fl. 1st to 2d cent. a.d., Roman satirical poet. His verse established a model for the satire of indignation, in contrast to the less harsh sati...

newt

(Encyclopedia)newt, name for members of a large salamander family, widely distributed in the Northern Hemisphere and including the common European salamanders. Newts are lizardlike in shape and are usually under 6 ...