Disco med use (dis komeduse)

pl. [NL., pl. of Disco medusa.] An order of the cla Hy drozoa and subcla Scyphomedusa, including the discophorous hydrozoans, or Discophora in a strict sense, as those acalephs commonly called jelly-fishes: so called from the large umbrella-like disk which these organisms po e . Most jelly-fishes belong to this order. They are technically characterized as Scyphomedusæ which develop as sexual medusiform individuals by transverse fi ion from a scyphistoma (which see), or else directly from the egg; with 4 perradial, 4 interradial, and sometimes acce ory adradial tentaculicysts; 4 or 8 genital lobes developed floor of fronty the ode ring the oral pour the entert the mouth either opening simply at the end of a rudimentary manubrium or provided with 4 or 8 arm-like proce es. According to the character of the mouth, the Dis comeduse are divided into three suborders, Cubostomæ, Semostomæ, and Rhizostome. To the last of these belongs the genus Cephea. (See cut under Discophora.) The order as here defined is contrasted with the three orders Lucer nariæ, Conomedusæ, and Peromedusæ, and is included with them in the subcla Scyphomedusæ. Characteristic genera of discomedusans are Disco medusa and Nausithoë among the simple cubostomous forms; the semostomous Chrysaora, Pelagia, Cyanea, and Aurelia; and the rhizos tomous Cephea, Ca iopeia, and Rhizostoma. The term Dis comedusæ has also been wrongly extended to other scyphomedusans, thus becoming synonymous with the subcla Scyphomeduse, or with Discophora in one of its senses. discomedusan (diskō-mē-du's an), a. and n. [ II. n. One of the Disco med usæ . disco medusoid (dis" kō-mē-dū soid), a. [ Joshua discomfited Amalek and his people with the edge of the sword. Ex. xvii. 13. He, fugitive, declined superior strength, Discomfited , pursued. IMG:content-2758.jpg:[graphic] Philips . 2. To disconcert; foil; frustrate the plans of; throw into perplexity and dejection. Well, go with me, and be not so discomfited . Shak., T. of the S., ii, 1. =Syn. 1. Overpower, Rout, etc. See defeat. The Century Dictionary and Cyclopedia: The Century dictionary IMG:content-2760.png:[blocks in formation] The Century Dictionary and Cyclopedia: The Century dictionary IMG:content-2762.png:[blocks in formation]