(||Si*pho"ni*a) n. [NL.] (Bot.) A former name for a euphorbiaceous genus (Hevea) of South American trees, the principal source of caoutchouc.

(||Si*pho`ni*a"ta) n. pl. [NL.] (Zoöl.) Same as Siphonata.

(Si*phon"ic) a. Of or pertaining to a siphon.

(Si*phon"i*fer) n. [NL., fr. L. sipho, -onis, siphon + ferre to bear.] (Zoöl.) Any cephalopod having a siphonate shell.

(Si"phon*if"er*ous) a. [Siphon + -ferous.] (Zoöl.) Siphon-bearing, as the shell of the nautilus and other cephalopods.

(||Si*pho"ni*um) n.; pl. Siphonia [NL., from Gr. dim. of . See Siphon.] (Anat.) A bony tube which, in some birds, connects the tympanium with the air chambers of the articular piece of the mandible.

(||Si`pho*no*bran`chi*a"ta) n. pl. [NL. See Siphon, and Branchia.] (Zoöl.) A tribe of gastropods having the mantle border, on one or both sides, prolonged in the form of a spout through which water enters the gill cavity. The shell itself is not always siphonostomatous in this group.

(Si`pho*no*bran"chi*ate) a. (Zoöl.) Having a siphon, or siphons, to convey water to the gills; belonging or pertaining to the Siphonobranchiata.n. One of the Siphonobranchiata.

(Si`pho*nog"ly*phe) n. [Siphon + Gr. to engrave.] (Zoöl.) A gonidium.

(||Si`pho*noph"o*ra) n. pl. [NL., fr. Gr. a siphon + to bear.] (Zoöl.) An order of pelagic Hydrozoa including species which form complex free-swimming communities composed of numerous zooids of various kinds, some of which act as floats or as swimming organs, others as feeding or nutritive zooids, and others as reproductive zooids. See Illust. under Physallia, and Porpita.

(Si`pho*noph"o*ran) a. (Zoöl.) Belonging to the Siphonophora.n. One of the Siphonophora.

(Si*phon"o*phore) n. (Zoöl.) One of the Siphonophora.

(||Si`pho*nop"o*da) n. pl. [NL. See Siphon, and -poda.] (Zoöl.) A division of Scaphopoda including those in which the foot terminates in a circular disk.

(||Si`pho*no*stom"a*ta) n. pl. [NL. See Siphon, and Stoma.] (Zoöl.) (a) A tribe of parasitic copepod Crustacea including a large number of species that are parasites of fishes, as the lerneans. They have a mouth adapted to suck blood. (b) An artificial division of gastropods including those that have siphonostomatous shells.

(Si`pho*no*stom"a*tous) a. (Zoöl.) (a) Having the front edge of the aperture of the shell prolonged in the shape of a channel for the protection of the siphon; — said of certain gastropods. (b) Pertaining to the Siphonostomata.

(Si`pho*nos"tome) n. [Gr. a siphon + mouth.] (Zoöl.) (a) Any parasitic entomostracan of the tribe Siphonostomata. (b) A siphonostomatous shell.

(Si`pho*rhi"nal) a. [Siphon + rhinal.] (Zoöl.) Having tubular nostrils, as the petrels.

(Si`pho*rhin"i*an) n. (Zoöl.) A siphorhinal bird.

(Si"phun`cle) n. [L. siphunculus, sipunculus, dim. of sipho. See Siphon.] (Zoöl.) The tube which runs through the partitions of chambered cephalopod shells.

  By PanEris using Melati.

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