Part 82

Milton.

Scale"back` (?), n. (Zoöl.) Any one of numerous species of marine annelids of the family Polynoidæ, and allies, which have two rows of scales, or elytra, along the back. See Illust. under Chætopoda.

Scale"beam` (?), n. 1. The lever or beam of a balance; the lever of a platform scale, to which the poise for weighing is applied.

2. A weighing apparatus with a sliding weight, resembling a steelyard.

Scale"board` (?; commonly &?;), n. [3d scale + board.] 1. (Print.) A thin slip of wood used to justify a page. [Obs.] Crabb.

2. A thin veneer of leaf of wood used for covering the surface of articles of furniture, and the like.

Scaleboard plane, a plane for cutting from a board a wide shaving forming a scaleboard.

Scaled (?), a. 1. Covered with scales, or scalelike structures; -- said of a fish, a reptile, a moth, etc.

2. Without scales, or with the scales removed; as, scaled herring.

3. (Zoöl.) Having feathers which in form, color, or arrangement somewhat resemble scales; as, the scaled dove.

Scaled dove (Zoöl.), any American dove of the genus Scardafella. Its colored feather tips resemble scales.

Scale"less (?), a. Destitute of scales.

Sca*lene" (?), a. [L. scalenus, Gr. &?;: cf. F. scalène.] 1. (Geom.) (a) Having the sides and angles unequal; -- said of a triangle. (b) Having the axis inclined to the base, as a cone.

2. (Anat.) (a) Designating several triangular muscles called scalene muscles. (b) Of or pertaining to the scalene muscles.

Scalene muscles (Anat.), a group of muscles, usually three on each side in man, extending from the cervical vertebræ to the first and second ribs.

Sca*lene", n. (Geom.) A triangle having its sides and angles unequal.

Sca*le`no*he"dral (sk*l`n*h"dral), a. (Crystallog.) Of or pertaining to a scalenohedron.

Sca*le`no*he"dron (-drn), n. [Gr. skalhno`s uneven + "e`dra seat, base.] (Crystallog.) A pyramidal form under the rhombohedral system, inclosed by twelve faces, each a scalene triangle.

Scal"er (?), n. One who, or that which, scales; specifically, a dentist's instrument for removing tartar from the teeth.

Scale"-winged` (?), a. (Zoöl.) Having the wings covered with small scalelike structures, as the Lepidoptera; scaly-winged.

Scal"i*ness (?), n. The state of being scaly; roughness.

Scal"ing (skl"ng), a. 1. Adapted for removing scales, as from a fish; as, a scaling knife; adapted for removing scale, as from the interior of a steam boiler; as, a scaling hammer, bar, etc.

2. Serving as an aid in clambering; as, a scaling ladder, used in assaulting a fortified place.

Scal*io"la (?), n. Same as Scagliola.

Scall (?), n. [Icel. skalli a bald head. Cf. Scald, a.] A scurf or scabby disease, especially of the scalp.

It is a dry scall, even a leprosy upon the head.

Lev. xiii. 30.

Scall, a. Scabby; scurfy. [Obs.] Shak.