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‖ n. [ NL., fr. Ankylostoma, var. of Agchylostoma, generic name of one genus of the parasitic nematodes. ] (Med.) A disease caused by the hookworm parasites of the genus Ancylostoma (especially Ancylostoma duodenale), and Necator americanus. Typically, infection in humans occurs in the small intestine. In the small intestine they suck the blood from the wall and, when present in large numbers, produce a severe anaemia. Called also miner's anaemia, tunnel disease, brickmaker's anaemia, Egyptian chlorosis. [ Webster 1913 Suppl. + AS ]

n. [ F. cylindre, OF. cilindre, L. cylindrus, fr. Gr. ky`lindros, fr. kyli`ndein, kyli`ein, to roll. Cf. Calender the machine. ] [ 1913 Webster ]

1. (Geom.) (a) A solid body which may be generated by the rotation of a parallelogram round one its sides; or a body of rollerlike form, of which the longitudinal section is oblong, and the cross section is circular. (b) The space inclosed by any cylindrical surface. The space may be limited or unlimited in length. [ 1913 Webster ]

2. Any hollow body of cylindrical form, as: (a) The chamber of a steam engine in which the piston is moved by the force of steam. (b) The barrel of an air or other pump. (c) (Print.) The revolving platen or bed which produces the impression or carries the type in a cylinder press. (d) The bore of a gun; the turning chambered breech of a revolver. [ 1913 Webster ]

3. The revolving square prism carrying the cards in a Jacquard loom. [ 1913 Webster ]

Cylinder axis. (Anat.) See Axis cylinder, under Axis. --
Cylinder engine (Paper Making), a machine in which a cylinder takes up the pulp and delivers it in a continuous sheet to the dryers. --
Cylinder escapement. See Escapement. --
Cylinder glass. See Glass. --
Cylinder mill. See Roller mill. --
Cylinder press. See Press. [ 1913 Webster ]

a. [ Cf. F. cylyndracé ] Cylindrical, or approaching a cylindrical form. [ 1913 Webster ]

{ } a. [ Gr. kylindriko`s, from ky`lindros cylinder: cf. F. cylindrique. ] Having the form of a cylinder, or of a section of its convex surface; partaking of the properties of the cylinder. [ 1913 Webster ]

Cylindrical lens, a lens having one, or more than one, cylindrical surface. --
Cylindric surface or
Cylindrical surface, (Geom.), a surface described by a straight line that moves according to any law, but so as to be constantly parallel to a given line. --
Cylindrical vault. (Arch.) See under Vault, n. [ 1913 Webster ]

n. 1. the roundness of a 3-dimensional cylinder.
Syn. -- cylindricalness; cylindricity. [ WordNet 1.5 ]

adv. In the manner or shape of a cylinder; so as to be cylindrical. [ 1913 Webster ]

n. 1. the roundness of a 3-dimensional cylinder.
Syn. -- cylindricality; cylindricity. [ WordNet 1.5 ]

n. The quality or condition of being cylindrical. [ 1913 Webster ]

a. [ L. cylindrus (Gr. ky`lindros) cylinder + -form: cf. F. cylindriforme. ] Having the form of a cylinder. [ 1913 Webster ]

n. [ Gr. ky`lindros cylinder + -oid: cf. F. cylindroïde. ] 1. A solid body resembling a right cylinder, but having the bases or ends elliptical. [ 1913 Webster ]

2. (Geom.) A certain surface of the third degree, described by a moving straight line; -- used to illustrate the motions of a rigid body and also the forces acting on the body. [ 1913 Webster ]

a. [ Gr. ky`lindros + me`tron measure. ] Belonging to a scale used in measuring cylinders. [ 1913 Webster ]

n. [ L. decem ten + -yl. ] (Chem.) A hydrocarbon radical, C10H21., never existing alone, but regarded as the characteristic constituent of a number of compounds of the paraffin series. [ 1913 Webster ]

a. (Chem.) Allied to, or containing, the radical decyl. [ 1913 Webster ]

n. [ Hex- + decyl. ] (Chem.) The essential radical, C16H33, of hecdecane. [ 1913 Webster ]

a. (Chem.) Pertaining to, or derived from, hexdecyl or hecdecane; as, hexdecylic alcohol. [ 1913 Webster ]

n. [ Myricin + -yl. ] (Chem.) A hypothetical radical regarded as the essential residue of myricin; -- called also melissyl. [ 1913 Webster ]

a. [ Nitro- + salicylic. ] (Chem.) Of, pertaining to, or designating, a nitro derivative of salicylic acid, called also anilic acid. [ 1913 Webster ]

a. Having a form intermediate between ovate and cylindraceous. [ 1913 Webster ]

a. Same as Ovate-cylindraceous. [ 1913 Webster ]

a. [ Penta- + decylic. ] (Chem.) Same as Quindecylic. [ 1913 Webster ]

n. [ L. quindecim fifteen + -yl. ] (Chem.) Pertaining to, or designating, an acid of the fatty acid series, containing fifteen atoms of carbon; called also pentadecylic acid. [ 1913 Webster ]

. In a variable expansion central-valve engine, a small auxiliary engine for automatically adjusting the steam distribution to the load on the main engine. [ Webster 1913 Suppl. ]

a. (Chem.) Of, or pertaining to, or producing, resorcin; as, resorcylic acid. [ 1913 Webster ]

n. [ Salicin + -yl. ] (Chem.) The hypothetical radical of salicylic acid and of certain related compounds. [ 1913 Webster ]

n. [ Salicylic + aldehide. ] (Chem.) A thin, fragrant, colorless oil, HO.C6H4.CHO, found in the flowers of meadow sweet (Spiraea), and also obtained by oxidation of salicin, saligenin, etc. It reddens on exposure. Called also salicylol, salicylic aldehyde, and formerly salicylous acid or spiroylous acid. [ 1913 Webster ]

n. (Chem.) A salt of salicylic acid. [ 1913 Webster ]

a. (Chem.) Pertaining to, derived from, or designating, an acid formerly obtained by fusing salicin with potassium hydroxide, and now made in large quantities from phenol (carbolic acid) by the action of carbon dioxide on heated sodium phenolate. It is a white crystalline substance. It is used as an antiseptic, and in its salts in the treatment of rheumatism. Called also hydroxybenzoic acid. [ 1913 Webster ]

n. [ Salicylic + anhydride. ] (Chem.) A white crystalline substance obtained by dehydration of salicylic acid. [ 1913 Webster ]

n. (Chem.) A compound of salicylal; -- named after the analogy of a salt. [ 1913 Webster ]

n. [ Salicylic + L. oleum oil. ] (Chem.) Same as Salicylal. [ 1913 Webster ]

a. (Chem.) Pertaining to, or designating, a substance formerly called salicylous acid, and now salicylal. [ Obs. ] [ 1913 Webster ]

v. t. [ AS. scylan to withdraw or remove. ] To hide; to secrete; to conceal. [ Obs. ] [ 1913 Webster ]

n. A dangerous rock on the Italian coast opposite the whirpool Charybdis on the coast of Sicily, -- both personified in classical literature as ravenous monsters. The passage between them was formerly considered perilous; hence, the saying “Between Scylla and Charybdis, ” signifying a great peril on either hand. [ 1913 Webster ]

‖n. [ NL. See Scylla. ] (Zool.) A genus of oceanic nudibranchiate mollusks having the small branched gills situated on the upper side of four fleshy lateral lobes, and on the median caudal crest. [ 1913 Webster ]

☞ In color and form these mollusks closely imitate the fronds of sargassum and other floating seaweeds among which they live. [ 1913 Webster ]

n. (Zool.) One of a family (Scyllaridae) of macruran Crustacea, remarkable for the depressed form of the body, and the broad, flat antennae. Also used adjectively. [ 1913 Webster ]

n. (Chem.) A white crystalline substance of a sweetish taste, resembling inosite and metameric with dextrose. It is extracted from the kidney of the dogfish (of the genus Scyllium), the shark, and the skate. [ 1913 Webster ]

{ a. Half cylindrical. [ 1913 Webster ]

{ } a. Imperfectly cylindrical; approximately cylindrical. [ 1913 Webster ]

n. [ Undecane + -yl. ] (Chem.) The radical regarded as characteristic of undecylic acid. [ 1913 Webster ]

a. (Chem.) Pertaining to, or designating, an acid C11H20O2, homologous with acrylic acid, and obtained as a white crystalline substance by the distillation of castor oil. [ 1913 Webster ]