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Substituent

Any atom, group, or radical substituted for another, or entering a molecule in place of some other part which is removed.

Substitute

To put in the place of another person or thing; to exchange.

Substitution

The act of substituting or putting one person or thing in the place of another; as, the substitution of an agent, attorney, or representative to act for one in his absense; the substitution of bank notes for gold and silver as a circulating medium.

Substitutional

Of or pertaining to substitution; standing in the place of another; substituted.

Substitutive

Tending to afford or furnish a substitute; making substitution; capable of being substituted.

Substratum

That which is laid or spread under; that which underlies something, as a layer of earth lying under another; specifically (Agric.), the subsoil.

Substruct

To build beneath something; to lay as the foundation.

Substruction

Underbuilding; the foundation, or any preliminary structure intended to raise the lower floor or basement of a building above the natural level of the ground.

Substyle

A right line on which the style, or gnomon, of a dial is erected; being the common section of the face of the dial and a plane perpendicular to it passing through the style.

Subsulphide

A nonacid compound consisting of one equivalent of sulphur and more than one equivalent of some other body, as a metal.

Subsultory

Bounding; leaping; moving by sudden leaps or starts.

Subsultus

A starting, twitching, or convulsive motion.

Subsume

To take up into or under, as individual under species, species under genus, or particular under universal; to place (any one cognition) under another as belonging to it; to include under something else.

Subsumption

The act of subsuming, or of including under another.

Subtangent

The part of the axis contained between the ordinate and tangent drawn to the same point in a curve.

Subtectacle

A space under a roof; a tabernacle; a dwelling.

Subtenant

One who rents a tenement, or land, etc., of one who is also a tenant; an undertenant.

Subtend

To extend under, or be opposed to; as, the line of a triangle which subtends the right angle; the chord subtends an arc.

Subtense

A line subtending, or stretching across; a chord; as, the subtense of an arc.

Subterfuge

That to which one resorts for escape or concealment; an artifice employed to escape censure or the force of an argument, or to justify opinions or conduct; a shift; an evasion.

Subterraneous Subterranean

Being or lying under the surface of the earth; situated within the earth, or under ground; as, subterranean springs; a subterraneous passage.

Subtile

Thin; not dense or gross; rare; as, subtile air; subtile vapor; a subtile medium.

Subtilism

The quality or state of being subtile; subtility; subtlety.

Subtilize

To refine in argument; to make very nice distinctions.

Subtilty

The quality or state of being subtile; thinness; fineness; as, the subtility of air or light.

Subtle

Sly in design; artful; cunning; insinuating; subtile; -- applied to persons; as, a subtle foe.

Subtleness

The quality or state of being subtle; subtlety.

Subtlety

The quality or state of being subtle, or sly; cunning; craftiness; artfulness.

Subtly

In a subtle manner; slyly; artfully; cunningly.

Subtonic

A subtonic sound or element; a vocal consonant, as b, d, g, n, etc.; a subvocal.

Subtract

To withdraw, or take away, as a part from the whole; to deduct; as, subtract 5 from 9, and the remainder is 4.

Subtraction

The act or operation of subtracting or taking away a part.

Subtrahend

The sum or number to be subtracted, or taken from another (the minuend) to find the difference.

Subtreasurer

The public officer who has charge of a subtreasury.

Subtreasury

A subordinate treasury, or place of deposit; as, the United States subtreasury at New York.

Subtribe

A division of a tribe; a group of genera of a little lower rank than a tribe.

Subtrihedral

Approaching the form of a three-sided pyramid; as, the subtrihedral crown of a tooth.

Subtriple

Containing a third, or one part to three.

Subtriplicate

Expressed by the cube root; -- said especially of ratios.

Subtypical

Deviating somewhat from the type of a species, genus, or other group; slightly aberrant.

Subulated Subulate

Very narrow, and tapering gradually to a fine point from a broadish base; awl-shaped; linear.

Subulicornes

A division of insects having slender or subulate antennae. The dragon flies and May flies are examples.

Subulipalp

One of a group of carabid beetles having slender palpi.

Subumbonal

Beneath or forward of the umbos of a bivalve shell.

Subumbrella

The integument of the under surface of the bell, or disk-shaped body, of a jellyfish.

Suburb

An outlying part of a city or town; a smaller place immediately adjacent to a city; in the plural, the region which is on the confines of any city or large town; as, a house stands in the suburbs; a garden situated in the suburbs of Paris.

Suburbed

Having a suburb or suburbs on its outer part.

Suburbicary Suburbicarian

Being in the suburbs; -- applied to the six dioceses in the suburbs of Rome subject to the pope as bishop of Rome.

Suburethral

Situated under the urethra, or under its orifice.

Subvaginal

Situated under or inside a sheath or vaginal membrane; as, the subvaginal, or subdural, spaces about the optic nerve.

Subvariety

A subordinate variety, or a division of a variety.

Subvene

To come under, as a support or stay; to happen.

Subversion

The act of overturning, or the state of being overturned; entire overthrow; an overthrow from the foundation; utter ruin; destruction; as, the subversion of a government; the subversion of despotic power; the subversion of the constitution.

Subversive

Tending to subvert; having a tendency to overthrow and ruin.

Subvert

To overthrow anything from the foundation; to be subversive.

Subvertebral

Situated beneath, or on the ventral side of, the vertebral column; situated beneath, or inside of, the endoskeleton; hypaxial; hyposkeletal.

Subverter

One who, or that which, subverts; an overthrower.

Subvitalized

Imperfectly vitalized; having naturally but little vital power or energy.

Subway

An underground way or gallery; especially, a passage under a street, in which water mains, gas mains, telegraph wires, etc., are conducted.

Subzonal

Situated under a zone, or zona; -- applied to a membrane between the zona radiata and the umbilical vesicle in the mammal embryo.

Succedaneous

Pertaining to, or acting as, a succedaneum; supplying the place of something else; being, or employed as, a substitute for another.

Succedaneum

One who, or that which, succeeds to the place of another; that which is used for something else; a substitute; a remedy used as a substitute for another.

Succeed

To come in the place of another person, thing, or event; to come next in the usual, natural, or prescribed course of things; to follow; hence, to come next in the possession of anything; -- often with to.

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