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inhabits the Pacific Ocean. Both species are similar in habits and feed principally on seaweed and other marine plants, especially the turtle grass. -- Turtle cowrie (Zoöl.), a large, handsome cowrie (Cypræa testudinaria); the turtle-shell; so called because of its fancied resemblance to a tortoise in color and form.…

To touch lightly, or play with; to tweedle; to twirl; as, to twiddle one's thumbs; to twiddle a watch key. [Written also twidle.] Thackeray.

A genus of thin papery bright green seaweeds including the kinds called sea lettuce.

cluster in which the flower stalks radiate from a common point, as in the carrot and milkweed. It is simple or compound; in the latter case, each peduncle bears another little umbel, called umbellet, or umbellule.

mbre, and umbrine. Umbra tree (Bot.), a tree (Phytolacca diocia) of the same genus as pokeweed. It is native of South America, but is now grown in southern Europe. It has large dark leaves, and a somber aspect. The juice of its berries is used for coloring wine. J. Smith (Dict. Econ. Plants).

A little sac or vesicle, as the air cell of fucus, or seaweed.

The calcined ashes of any coarse seaweed used for the manufacture of soda and iodine; also, the seaweed itself; fucus; wrack.

aving showy purplish blue flowers. It is sometimes cultivated, but has become a pestilent weed in fields from New York to Virginia. Also called blue weed. -- Viper's grass (Bot.), a perennial composite herb (Scorzonera Hispanica) with narrow, entire leaves, and solitary heads of yellow flowers. The long, white, carrot…

A votary. Like a sad votarist in palmer's weed. Milton.

The pickerel weed. [Southern U.S.]

Seaweed. [Obs. or Prov. Eng.] Ware goose (Zoöl.), the brant; -- so called because it feeds on ware, or seaweed. [Prov. Eng.]

Bugleweed.

ither of several tropical aquatic plants of the genus Eichhornia, related to the pickerel weed.

Smartweed.

A small white-flowered shrub; brookweed.

te, growing in Europe, and to some extent in America; dyer's broom; dyer's rocket; dyer's weed; wild woad. It is used by dyers to give a yellow color. [Written also woald, wold, and would.]

The bank of a river, or the shore of the sea. [Obs.] "The fat weed that roots itself in ease on Lethe wharf." Shak. Wharf boat, a kind of boat moored at the bank of a river, and used for a wharf, in places where the height of the water is so variable that a fixed wharf would be useless. [U. S.] Bartlett. -- Wharf rat.…

Same as Willow-weed.

the stems of herbs, which are driven by the winds over the steppes of Tartary. Cf. Tumbleweed. Maunder (Treas. of Bot.) -- Witches' besoms (Bot.), tufted and distorted branches of the silver fir, caused by the attack of some fungus. Maunder (Treas. of Bot.) -- Witches' butter (Bot.), a name of several gelatinous crypt…

A kind of bindweed (Convolvulus arvensis). He bare a burden ybound with a broad list, In a withewyndes wise ybounden about. Piers Plowman.