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An agent employed in nitrification.

rrounding protoplasm by a difference in refrangibility and in behavior towards chemical reagents. It is more or less protoplasmic, and consists of a clear fluid (achromatin) through which extends a network of fibers (chromatin) in which may be suspended a second rounded body, the nucleolus (see Nucleoplasm). See Cell d…

Denoting the agent, or person by whom, or thing by which, anything is, or is done; by. And told to her of [by] some. Chaucer. He taught in their synagogues, being glorified of all. Luke iv. 15. [Jesus] being forty days tempted of the devil. Luke iv. 1, 2.

A noun suffix denoting an agent or doer; as in auditor, one who hears; donor, one who gives; obligor, elevator. It is correlative to -ee. In general -or is appended to words of Latin, and -er to those of English, origin. See -er.

allowance made for, equipment, as by the government of the United States to a diplomatic agent going abroad.

To combine with oxygen, or subject to the action of oxygen, or of an oxidizing agent. Specifically:

An agent employed in oxidation, or which facilitates or brings about combination with oxygen; as, nitric acid, chlorine, bromine, etc., are strong oxidizers.

An oxytocic medicine or agent.

An apparatus or agent for the production or application of ozone.

That which palliates; a palliative agent. Sir W. Scott.

nt and lubricant. It is very inert, not being acted upon by most of the strong chemical reagents. It was formerly regarded as a definite compound, but is now known to be a complex mixture of several higher hydrocarbons of the methane or marsh-gas series; hence, by extension, any substance, whether solid, liquid, or gas…

usages of Parliament or of deliberative bodies; as, a parliamentary motion. Parliamentary agent, a person, usually a solicitor, professionally employed by private parties to explain and recommend claims, bills, etc., under consideration of Parliament. [Eng.] -- Parliamentary train, one of the trains which, by act of Pa…

Susceptible of feeling or suffering, or of impressions from external agents. Apolinarius, which held even deity itself passible. Hooker.

The state of being acted upon; subjection to an external agent or influence; a passive condition; -- opposed to action. A body at rest affords us no idea of any active power to move, and, when set is motion, it is rather a passion than an action in it. Locke.

oice (Gram.), a verb, or form of a verb, which expresses the effect of the action of some agent; as, in Latin, doceor, I am taught; in English, she is loved; the picture is admired by all; he is assailed by slander.

ssive recipient. Malice is a passion so impetuous and precipitate that often involves the agent and the patient. Gov. of Tongue.

One who pays; one who compensates, rewards, or requites; specifically, an officer or agent of a government, a corporation, or an employer, whose duty it is to pay salaries, wages, etc., and keep account of the same.

d the two together constitute the active portion of the digestive fluid. It is the active agent in the gastric juice of all animals.

An agent that promotes digestion.

, self-conscious being, as distinct from an animal or a thing; a moral agent; a human being; a man, woman, or child. Consider what person stands for; which, I think, is a thinking, intelligent being, that has reason and reflection. Locke.