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moss. Dorsal vessel (Zoöl.), a central pulsating blood vessel along the back of insects, acting as a heart.

Divided into two; acting two parts, one openly and the other secretly; equivocal; deceitful; insincere. With a double heart do they speak. Ps. xii. 2.

Acting rapidly and violently; efficacious; powerful; -- opposed to bland; as, drastic purgatives. -- n. (Med.)

To influence to move or tend toward one's self; to exercise an attracting force upon; to call towards itself; to attract; hence, to entice; to allure; to induce. The poet Did feign that Orpheus drew trees, stones, and floods. Shak. All eyes you draw, and with the eyes the heart. Dryden.

The act of pulling, or attracting.

deception which consists in entertaining or pretending to entertain one of feelings, and acting as if influenced by another; bad faith. Far from the duplicity wickedly charged on him, he acted his part with alacrity and resolution. Burke.

the C. G. S. (Centimeter Gram Second) system of physical units; that is, the force which, acting on a gram for a second, generates a velocity of a centimeter per second.

agent or force; production of the effect intended; as, the efficacy of medicine in counteracting disease; the efficacy of prayer. "Of noxious efficacy." Milton.

A force acting on a body in the direction of its motion. Rankine.

Acting force; elasticity. [Obs.] Ray.

Softening; making supple; acting as an emollient. "Emollient applications." Arbuthnot.

Striking the sense; attracting special attention; impressive; forcible. "Emphatical colors." Boyle. "Emphatical evils." Bp. Reynolds.

To act the part of; to represent; to play. I did enact Julius Caesar. Shak. Enacting clause, that clause of a bill which formally expresses the legislative sanction.

Acting through the skin, or by direct application to the skin. Endermic method, that in which the medicine enters the system through the skin, being applied either to the sound skin, or to the surface denuded of the cuticle by a blister.

In a state of action; acting; operating.

Internal or inherent power; capacity of acting, operating, or producing an effect, whether exerted or not; as, men possessing energies may suffer them to lie inactive. The great energies of nature are known to us only by their effects. Paley.

A process of extracting perfumes by exposing absorbents, as fixed oils or fats, to the exhalations of the flowers. It is used for plants whose volatile oils are too delicate to be separated by distillation.

gard. [R.] Keats. From the very dawn of existence the infant must envisage self, and body acting on self. McCosh.

Attracting the humors to the skin; exciting action in the skin; blistering.

ostigma venenosum; physostigmine. It is used in ophthalmic surgery for its effect in contracting the pupil.