rushn.[OE. rusche, rische, resche, AS. risce, akin to LG. rusk, risch, D. & G. rusch; all probably fr. L. ruscum butcher's broom; akin to Goth. raus reed, G. rohr.]1. (Bot.) A name given to many aquatic or marsh-growing endogenous plants with soft, slender stems, as the species of Juncus and Scirpus.()()2. The merest trifle; a straw.()John Bull's friendship is not worth a rush. (Arbuthnot.)Bog rush. See under Bog. -- Club rush, any rush of the genus Scirpus. -- Flowering rush. See under Flowering. -- Nut rush (a) Any plant of the genus Scleria, rushlike plants with hard nutlike fruits. (b) A name for several species of Cyperus having tuberous roots. -- Rush broom, an Australian leguminous plant (Viminaria denudata), having long, slender branches. Also, the Spanish broom. See under Spanish. -- Rush candle, See under Candle. -- Rush grass, any grass of the genus Vilfa, grasses with wiry stems and one-flowered spikelets. -- Rush toad (Zol.), the natterjack. -- Scouring rush. (Bot.) Same as Dutch rush, under Dutch. -- Spike rush, any rushlike plant of the genus Eleocharis, in which the flowers grow in dense spikes. -- Sweet rush, a sweet-scented grass of Arabia, etc. (Andropogon schnanthus), used in Oriental medical practice. -- Wood rush, any plant of the genus Luzula, which differs in some technical characters from Juncus.()v. i.[OE. ruschen; cf. AS. hryscan to make a noise, D. ruischen to rustle, G. rauschen, MHG. rschen to rush, to rustle, LG. rusken, OSw. ruska, Icel. & Sw. ruska to shake, Dan. ruske to shake, and E. rouse.]1. To move forward with impetuosity, violence, and tumultuous rapidity or haste; as, armies rush to battle; waters rush down a precipice.()Like to an entered tide, they all rush by. (Shak.)2. To enter into something with undue haste and eagerness, or without due deliberation and preparation; as, to rush business or speculation.()They . . . never think it to be a part of religion to rush into the office of princes and ministers. (Sprat.)v. t.1. To push or urge forward with impetuosity or violence; to hurry forward.()2. To recite (a lesson) or pass (an examination) without an error.()n.1. A moving forward with rapidity and force or eagerness; a violent motion or course; as, a rush of troops; a rush of winds; a rush of water.()A gentleman of his train spurred up his horse, and, with a violent rush, severed him from the duke. (Sir H. Wotton.)2. Great activity with pressure; as, a rush of business.()3. A perfect recitation.()4. (Football) A rusher; as, the center rush, whose place is in the center of the rush line; the end rush.()Bunt rush (Football), a combined rush by main strength. -- Rush line (Football), the line composed of rushers.()