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granules, powdered inorganic substances, etc., which in form, size, and grouping resemble bacteria.

That which holds back, or causes to recede; a drawback; a hindrance.

tiobus, or Carpiodes, cyprinus); -- called also carp sucker, sailfish, spearfish, and skimback.

Having a sharp, lean, or thin back; as, a razor-backed hog, perch, etc.

The rorqual.

The dunlin. [U. S.]

Reprobation. [R.]

Having a back like that of roach; -- said of a horse whose back a convex instead of a concave curve.

A defamatory forgery or falsehood published for purposes of political intrigue. [U.S.]

Having a round back or shoulders; round-shouldered.

Having a low back and high neck, as a horse.

Same as Saddle-backed. Saddleback roof. (Arch.) See Saddle roof, under Saddle.

of the family Polynoidæ, and allies, which have two rows of scales, or elytra, along the back. See Illust. under Chætopoda.

A toy which imitates the sound of tearing cloth, -- used by drawing it across the back of unsuspecting persons. [Eng.]

ertaining to, or secreting, fat; composed of fat; having the appearance of fat; as, the sebaceous secretions of some plants, or the sebaceous humor of animals. Sebaceous cyst (Med.), a cyst formed by distention of a sebaceous gland, due to obstruction of its excretory duct. -- Sebaceous glands (Anat.), small subcutane…

Of or pertaining to fat; derived from, or resembling, fat; specifically, designating an acid (formerly called also sebic, and pyroleic, acid), obtained by the distillation or saponification of certain oils (as castor oil) as a white crystalline substance.

A backset; a countercurrent; an eddy. [U. S.]

A rounded knoll of rock resembling the back of a sheep. -- produced by glacial action. Called also roche moutonnée; -- usually in the plural.

The knot.

The quillback. [Local, U.S.]