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Obstructive. [Obs.] Sherwood.

A sense of heaviness or obstruction in the body or mind; depression; dullness; lassitude; as, an oppression of spirits; an oppression of the lungs. There gentlee Sleep First found me, and with soft oppression seized My drowsed sense. Milton.

nd lack of reaction in the affected tissues. Passive congestion (Med.), congestion due to obstruction to the return of the blood from the affected part. -- Passive iron (Chem.), iron which has been subjected to the action of heat, of strong nitric acid, chlorine, etc. It is then not easily acted upon by acids. -- Pas…

The operation of making an incision into the pharynx, to remove a tumor or anything that obstructs the passage.

To obstruct with, or as with, a portcullis; to shut; to bar. [R.] Shak.

To obstruct or injure by prejudices, or by previous bias of the mind; hence, generally, to hurt; to damage; to injure; to impair; as, to prejudice a good cause. Seek how may prejudice the foe. Shak

Tending to obstruct or impair; hurtful; injurious; disadvantageous; detrimental. Hooker. His going away . . . was most prejudicial and most ruinous to the king's affairs. Clarendon. -- Prej`u*di"cial*ly, adv. -- Prej`u*di"cial*ness, n.

Obstruction, dimness, or defect of sight. [Obs.] Milton.

One who prevents or obstructs; a hinderer; that which hinders; as, a preventer of evils or of disease.

The act of preventing or hindering; obstruction of action, access, or approach; thwarting. South. Casca, be sudden, for we fear prevention. Shak.

That which prevents, hinders, or obstructs; that which intercepts access; in medicine, something to prevent disease; a prophylactic.

A slender elastic rod, as of whalebone, with a sponge on the end, for removing obstructions from the esophagus, etc.

Easy; unobstructed. [Obs.] The reception of the light into the body of the building was very prompt. Sir H. Wotton.

To run swiftly round, as a small stream flowing among stones or other obstructions; to eddy; also, to make a murmuring sound, as water does in running over or through obstructions. Swift o'er the rolling pebbles, down the hills, Louder and louder purl the falling rills. Pope.

The motion of a small stream running among obstructions; also, the murmur it makes in so doing.

fallen trees, etc. (such as is formed in some Western rivers of the United States), which obstructs navigation. [U.S.]

rd. (a) A device attached to the front of a locomotive on each side for clearing the rail obstructions. (b) A guard rail. See under Guard. -- Rail joint (Railroad), a splice connecting the adjacent ends of rails, in distinction from a chair, which is merely a seat. The two devices are sometimes united. Among several h…

A cyst formed under the tongue by obstruction of the duct of the submaxillary gland.

To stand against; to withstand; to obstruct. That mortal dint, Save He who reigns above, none can resist. Milton.

That which retards; an obstacle; an obstruction. Hills, sloughs, and other terrestrial retardations. Sir W. Scott.