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Not possessing a mantle; -- said of certain gastropods.

Uncolored; not absorbing color from a fluid; -- said of tissue. Achromatic lens (Opt.), a lens composed usually of two separate lenses, a convex and concave, of substances having different refractive and dispersive powers, as crown and flint glass, with the curvatures so adjusted that the chromatic aberration produced…

fficer attesting such declaration. Acknowledgment money, in some parts of England, a sum paid by copyhold tenants, on the death of their landlords, as an acknowledgment of their new lords. Cowell.

Without inclination or dipping; -- said the magnetic needle balances itself horizontally, having no dip. The aclinic line is also termed the magnetic equator. Prof. August.

om below towards the apex, or from the circumference towards the center; centripetal; -- said of certain inflorescence.

e; athwart; crosswise, or in a direction opposed to the length; quite over; as, a bridge laid across a river. Dryden. To come across, to come upon or meet incidentally. Freeman. -- To go across the country, to go by a direct course across a region without following the roads.

A supposed metal, said by Phipson to be contained in commercial zinc; -- so called because certain of its compounds are darkened by exposure to light.

Shrillness; high pitch; -- said of sounds.

A term used to denote a duty or charge laid upon goods, at a certain rate per cent upon their value, as stated in their invoice, - - in opposition to a specific sum upon a given quantity or number; as, an ad valorem duty of twenty per cent.

To direct speech. [Obs.] Young Turnus to the beauteous maid addrest. Dryden.

Having coalescent or clustered filaments; -- said of stamens; as, adelphous stamens. Usually in composition; as, monadelphous. Gray.

A genus of ferns, the leaves of which shed water; maidenhair. Also, the black maidenhair, a species of spleenwort.

another day, or indefinitely; to postpone; to close or suspend for the day; -- commonly said of the meeting, or the action, of convened body; as, to adjourn the meeting; to adjourn a debate. It is a common practice to adjourn the reformation of their lives to a further time. Barrow. 'Tis a needful fitness That we adjo…

Lord, that riseth up and buildeth this city Jericho. Josh. vi. 26. The high priest . . . said . . . I adjure thee by the living God, that thou tell us whether thou be the Christ. Matt. xxvi. 63. The commissioners adjured them not to let pass so favorable an opportunity of securing their liberties. Marshall.…

Skillful arrangement in aid; assistance. It was, no doubt, disposed with all the adjutancy of definition and division. Burke.

An ingredient, in a prescription, which aids or modifies the action of the principal ingredient.

To contribute; to bring aid or supplies; to conduce; to minister. A fountain . . . administers to the pleasure as well as the plenty of the place. Spectator.

Growing together; -- said only of organic cohesion of unlike parts. An anther is adnate when fixed by its whole length to the filament. Gray.

The act of playing honor to a divine being; the worship paid to God; the act of addressing as a god. The more immediate objects of popular adoration amongst the heathens were deified human beings. Farmer.

Put in dread; afraid. [Obs.] Chaucer.