vibratory

[Eng. vibrat(e); -ory; Fr. vi bratoire.] 1. Vibrating; consisting of or belonging to vibra tion or oscillation. "The vibratory agitations of light and of air." Belsham: Philos. of the Mind, § 4. 2. Causing vibration. vi-bri-ō, subst. [Mod. Lat., from Lat. vibro to shake, to quiver.] *1. Zool .. The type-genus of Ehrenberg's Vibrion idae (q. v.). It approximately corresponds to the modern genus Anguillula (q. v.). Used also of any individual 12. Bot . According to Cohn, a genus of Schizomycetes, but Grove ( Bacteria and Yeast Fungi ) cla es that genus and Ophidomonas (Ehrenberg) with Spirillum, which he thus defines: Cells cylindrical or slightly compre ed, simply arcuate, or spirally twisted, rigid, with a flagellum at each end (doubtful in some species). Multiplication by transverse division, the daughter-cells for the most part soon separating. At times, also, a zooglœa is formed. The species are found in infusions, in brackish water, and in the slime of the teeth. Zopf a erted that minute spherical "cocci," short rodlets ("bacteria"), longer rodlets ("bacilli"), and filamentous ("leptothrix") forms, as well as curved and spiral threads ("vibrio," "spirillum"), ., occur as vegetative stages in one and the same Schizomycete. (Encyc. Brit . (ed. 9th), xxi. 399.) "It may be noted that Vibrio is here [i. e., in Ehrenberg's Die Infusionsthierohen, p. 75] conceived to be naturally straight-lined, but capable of bending in undulations of a serpentine form, being thus distinguished from Spirillum by the fact that the undulations lie all in one plane. But most modern observers are agreed that the species referred to Vibrio belong to two cla es-the one, in which the undulations are serpentine, being merely Bacillus; the other, in which they are spiral, being undistinguishable from Spirillum. This is, there here fore, another reason why the name Vibrio should be dropped."-W. B. Grove: Bacteria and Yeast Fungi , p. 69. tvi-bri-on-al, a. [Modern Latin vibrio , gen it. vibrion(is); Eng. suff. al .] Of, belonging to, or vibrios. In the last sense the word is incorrectly employed, the fungi of the genus Spiril. lum and the lapsed genus Vibrio not being pathog enous. "Virchow, who examined a sample, considered the granules found on these growths as not fungoid, but vibrional."- Blyth : Dict. Hygiene , p. 72. IMG:content-0492.png:[blocks in formation] *vi-bri-on-i-dæ, s . pl . [Mod. Lat. vibrio , gen it. vibrion ( is ); Lat. fem. pl. adj. suff. -idæ .] Zool.: A lapsed family of Ehrenberg's Infusoria. These organisms are now known to be Nematoid diction in a particular town or district of his Worms, and are cla ed in the family Anguillulide diocese. The chief duty of vicars-forane is to (q. v.). vi-bris-sæ, s . pl . [Lat. the small hairs in the nostrils, so called, according to Festus, because their extraction causes a person to shake his head.] Biol .: Hairs or bristles attached to the lips of many mammals, and especially developed in the Carnivora and Rodent i a. The vibri æ are organs of touch, and give warning of external obstacles, and branches of the fifth pair of nerves are distributed to their roots. Cats are rendered unable to catch mice when their whiskers are removed, and various experiments have shown that rabbits, without the a istance of their eyes, can by means of these hairs, find an outlet in narrow pa ages. Popularly known as Smellers and Whiskers. In many birds the nasal apertures are covered with stiff, imperfect feathers (also called bristles), to which the name Vibri e is sometimes applied. These, however, are not organs of touch, but serve to prevent the nostrils becoming obstructed by dust. vi-bro-scope, subst . [Eng. vibra ( tion ), and Gr. skopeō to see, to observe.] An instrument invented by Duhamel for graphically recording the vibrations of a tuning-fork, by means of an attached style on a piece of smoked paper gummed around a cylinder. The fork is made to vibrate, and the cylinder turned, the style making a mark whose waves correspond to the number of vibrations in a second. vi-bür-nic, adj . [Eng. viburn, n'.] Derived from the viburnum. viburnic-acid, s. Chem.: A term formerly applied to an acid found in the bark of the guelder-rose, probably valeric acid.