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Serving to heat; warming. [Obs.] Cotgrave.

Capable of being extracted. "Thirty grains of extractive matter." Kirwan.

Making; having power to make. [Obs.] "You are . . . factive, not destructive." Bacon.

Cooling. [Obs.] Boyle.

Not active; having no power to move; that does not or can not produce results; inert; as, matter is, of itself, inactive.

In an inactive manner. Locke.

Stupefactive. [Obs.]

See Olfactory, a.

Pertaining to, or characterized by, petrifaction. The . . . petrifactive mutations of hard bodies. Sir T. Browne.

Doing; active. [Obs.] Sylvester. -- Prac"tive*ly, adv. [Obs.] The preacher and the people both, Then practively did thrive. Warner.

wing out or lengthening in time; prolonging; continuing; delaying. He suffered their protractive arts. Dryden.

Of or pertaining to putrefaction; as, the putrefactive smell or process. Wiseman.

Capable of luminescence under the action of cathode rays, X rays, or any of the allied forms of radiation. -- Ra`di*o- ac*tiv"i*ty, n.

Having power to react; tending to reaction; of the nature of reaction. -- Re*act"ive*ly, adv. -- Re*act"ive*ness, n.

having power to refract, or turn from a direct course; pertaining to refraction; as, refractive surfaces; refractive powers. Refractive index. (Opt.) See Index of refraction, under Index. -- Absolute refractive index (Opt.), the index of refraction of a substances when the ray passes into it from a vacuum. -- Relati…

The quality or condition of being refractive.

Serving to retract; of the nature of a retraction. -- Re*tract"ive*ly, adv.

roact; operating by returned action; affecting what is past; retrospective. Beddoes. Retroactive law or statute (Law), one which operates to make criminal or punishable, or in any way expressly to affect, acts done prior to the passing of the law.

In a retroactive manner.

Satisfactory. [Obs.] Satisfactive discernment of fish. Sir T. Browne.