Equipollent

(Fr., from L. Lat. æqui pollens.] Having equal or equivalent power, strength, or force. (Logic.) Having equivalent significance. Equipollently, adv. With equal force and sign if i Equiponderance, Equipon'derancy, n. [Lat. æquus, and pond us, weight. See POUND.] Equipoise; equality of weight. Equipon'derant, a. Being of the same weight. Equipon'derate, v. n. [Lat. æquus, and pondero, ponder at us, to weigh, from pond us, weight.] To be equal in weight; to exhibit equipoise; to balance; to weigh as much as another thing. -v.a. To counterbalance; to weigh against. Equipon'dero us, a. Po e ing equality of weight. Equirad'ical, a . [Lat. æquus , and radiz, a root.] With radical equality. Equiro'tal, a. [Lat. æquus, and rota, a wheel.] Po e ing wheels of an equal diameter. Equiseta'сеӕ, п . [Lat. equus , a horse; seta , a hair or bristle.] ( Bot .) The Horsetail family, an order of plants, alliance Muscales. DIAG. Spore cases peltate, splitting on one side, without operculum, and with an elater to every spore. They are herbaceous plants, with striated, hollow, jointed, simple or vertically-branched, aërial, silicious stems, arising from slender creeping rhizomes, or underground stems. The joints are surrounded by membranous toothed sheaths, which are regarded as modified leaves; but, in general, the plants of the order are considered leafle . When branched, the branches arise in a whorled manner from beneath the axils of the sheaths, and correspond 2 4 3 1 1, semi-circular; 2, elliptic; 3, 4, 7. horse-shoe; 5, stilted; 6, seg. mental; 8, segmental pointed; 9, 10, trefoil; 11, equilateral: 12, Lancet; 13, cinquefoil; 14, trefoil 15, multifoil. "No more than usual equinozes blew."-Dryden. in number with them. Fig . 955. EQUISETUM TELMATΕΙΑ. These plants are found 1, summit of fertile stem, with fruc- in marshy or watery places in most parts of the world. There is but one genus, Equisetum, which includes 10 spe- tification: 2, a scale, with its stalk (lateral view); 3, a spore, with its filaments unrolled; 4, a spore, with its filaments hygrometrically rolled up. cies. The rhizomes contain much starchy matter in the winter months, which might be used as food in case of need. E. arvenese , the Field Horsetail; E. palsustre , the Marsh Horsetail; E. sylvaticum , the Wood Horsetail; and E. limosum, the Pipes, are found in most of the States, in woods and low grounds. The rough silicious stems of some species are used for smoothing and polishing wood, particularly those of E. hyemale, commonly known under the name of DUTCH RUSHES. The stems of this species are unbranched, or a little branched only at the base. It is sparingly found in this country. Equiseta'ceo us, a. ( Bot . ) Belonging to the EQUI SETACEE, q. v.