See Trigeminal.

To plow the third time before sowing, as land.

Facing three ways; arranged in three vertical ranks, as the leaves of veratrum.

Having, or surrounded by, three fasciae, or bands.

Cleft to the middle, or slightly beyond the middle, into three parts; three-cleft.

Having three pipes.

To make of no importance; to treat as a trifle.

One who trifles.

Being of small value or importance; trivial; paltry; as, a trifling debt; a trifling affair.

Three-flowered; having or bearing three flowers; as, a triflorous peduncle.

A concurrence of three waves.

Having three leaves or leaflets, as clover. See Illust. of Shamrock.

Having three leaflets.

A genus of leguminous herbs with densely spiked flowers and usually trifoliate leaves; trefoil. There are many species, all of which are called clover. See Clover.

Sweet trefoil.

The gallery or open space between the vaulting and the roof of the aisles of a church, often forming a rich arcade in the interior of the church, above the nave arches and below the clearstory windows.

Having a triple form or character.

The state of being triform, or of having a threefold shape.

Having three branches or forks; trichotomous.

A stone, block of wood, or anything else, placed under a wheel or barrel to prevent motion; a scotch; a skid.

One who has been married three times; also, one who has three husbands or three wives at the same time.

Having three sorts of flowers in the same head, -- male, female, and hermaphrodite, or perfect, flowers.

The act of marrying, or the state of being married, three times; also, the offense of having three husbands or three wives at the same time.

Having three bellies; -- said of a muscle.

Of, pertaining to, or designating, the fifth pair of cranial nerves, which divide on each side of the head into three main branches distributed to the orbits, jaws, and parts of the mouth; trifacial.

Born three together; being one of three born at the same birth; also, threefold.

Of, pertaining to, or designating, an acid, C4H7N3O2, obtained, by the action of the vapor of cyanic acid on cold aldehyde, as a white crystalline substance having a slightly acid taste and faint smell; -- called also ethidene-biuret or ethylidene-biuret.

A book composed of sheets so folded that each one makes thirty-two leaves; hence, indicating, more or less definitely, a size of book; -- usually written 32mo, or 32/, and called thirty-twomo.

A catch to hold the wheel of a carriage on a declivity.

A trental.

A glyceride formed by the replacement of three hydrogen atoms in glycerin by acid radicals.

An ornament in the frieze of the Doric order, repeated at equal intervals. Each triglyph consists of a rectangular tablet, slightly projecting, and divided nearly to the top by two parallel and perpendicular gutters, or channels, called glyphs, into three parts, or spaces, called femora. A half channel, or glyph, is also cut upon each of the perpendicular edges of the tablet. See Illust. of Entablature.

Consisting of, or pertaining to, triglyphs.

The quality or state of being trig; smartness; neatness.

Having three angles, or corners; triangular; as, a trigonal stem, one having tree prominent longitudinal angles.

A smooth triangular area on the inner surface of the bladder, limited by the apertures of the ureters and urethra.

A genus of pearly bivalve shells, numerous extinct species of which are characteristic of the Mesozoic rocks. A few living species exist on the coast of Australia.

Having horns with three angles, like those of some species of goats.

See Trituberculy.

That branch of mathematics which treats of the relations of the sides and angles of triangles, which the methods of deducing from certain given parts other required parts, and also of the general relations which exist between the trigonometrical functions of arcs or angles.

Same as Trigonal.

Same as Trigraph.

Containing three letters or characters, or three sets of letters or characters.

Same as Trigrammatic.

Three letters united in pronunciation so as to have but one sound, or to form but one syllable, as -ieu in adieu; a triphthong.

Any one of the Trigynia.

A Linnaean order of plants having three pistils or styles.

Having three pistils or styles; of or pertaining to the Trigynia.

Having three sides or faces; thus, a trihedral angle is a solid angle bounded by three plane angles.

A figure having three sides.

Occurring once in every three hours.

A hybrid whose parents differ by three pairs of contrasting Mendelian characters.

In three pairs; as, a trijugate leaf, or a pinnate leaf with three pairs of leaflets.

Same as Trijugate.

A hydrocarbon, C23H48, of the methane series, resembling paraffin; -- so called because it has twenty-three atoms of carbon in the molecule.

Having three sides; being three-sided; as, a trilateral triangle.

A syllogism with three conditional propositions, the major premises of which are disjunctively affirmed in the minor. See Dilemma.

Of, pertaining to, or included by, three lines; as, trilinear coordinates.

Containing, or consisting of, three languages; expressed in three languages.

See Trilingual.

Same as Triliterality.

The quality of being triliteral; as, the triliterality of Hebrew roots.

Same as Trilithon.

Pertaining to a trilith.

A monument consisting of three stones; especially, such a monument forming a kind of doorway, as among the ancient Celts.

To utter trills or a trill; to play or sing in tremulous vibrations of sound; to have a trembling sound; to quaver.

The oyster catcher.

One of tree children born at the same birth.

According to the French notation, which is used upon the Continent generally and in the United States, the number expressed by a unit with twelve ciphers annexed; a million millions; according to the English notation, the number produced by involving a million to the third power, or the number represented by a unit with eighteen ciphers annexed. See the Note under Numeration.

A genus of liliaceous plants; the three-leaved nightshade; -- so called because all the parts of the plant are in threes.

A trill or shake. See Trill.

Having three lobes.

The state of being trilobate.

Same as Trilobate.

An extinct order of arthropods comprising the trilobites.

Any one of numerous species of extinct arthropods belonging to the order Trilobita. Trilobites were very common in the Silurian and Devonian periods, but became extinct at the close of the Paleozoic. So named from the three lobes usually seen on each segment.

Of, pertaining to or containing, trilobites; as, trilobitic rocks.

Having three cells or cavities; as, a trilocular capsule; a trilocular heart.

A series of three dramas which, although each of them is in one sense complete, have a close mutual relation, and form one historical and poetical picture. Shakespeare's / Henry VI./ is an example.

Having three lights

Fitly adjusted; being in good order., or made ready for service or use; firm; compact; snug; neat; fair; as, the ship is trim, or trim built; everything about the man is trim; a person is trim when his body is well shaped and firm; his dress is trim when it fits closely to his body, and appears tight and snug; a man or a soldier is trim when he stands erect.

Marked with three spots, or maculae.

Of, pertaining to, or designating, a certain tribasic acid (called also trimellitic acid) metameric with trimesitic acid.

Having, or consisting of, three members.

A division of Coleoptera including those which have but three joints in the tarsi.

One of the Trimera. Also used adjectively.

Having the parts in threes.

Of, pertaining to, or designating, a tribasic acid, C6H3.(CO2)3, of the aromatic series, obtained, by the oxidation of mesitylene, as a white crystalline substance.

A term or period of three months.

Trimestrial.

Of or pertaining to a trimester, or period of three months; occurring once in every three months; quarterly.

Consisting of three poetical measures. A poetical division of verse, consisting of three measures.

A colorless volatile alkaline liquid, N.(CH3)3, obtained from herring brine, beet roots, etc., with a characteristic herringlike odor. It is regarded as a substituted ammonia containing three methyl groups.

A gaseous hydrocarbon, C3H6, isomeric with propylene and obtained from it indirectly. It is the base of a series of compounds analogous to the aromatic hydrocarbons.

Same as Orthorhombic.

Same as Trimeter.

In a trim manner; nicely.

One who trims, arranges, fits, or ornaments.

The act of one who trims.

In a trimming manner.

The quality or state of being trim; orderliness; compactness; snugness; neatness.

A substance which crystallizes in three distinct forms, or which has three distinct physical states; also, any one of these distinct forms. See Trimorphism, 1.

The property of crystallizing in three forms fundamentally distinct, as is the case with titanium dioxide, which crystallizes in the forms of rutile, octahedrite, and brookite. See Pleomorphism.

Of, pertaining to, or characterized by, trimorphism; -- contrasted with monomorphic, dimorphic, and polymorphic.

The triad, or trinity, of Hindu gods, consisting of Brahma, the Creator, Vishnu, the Preserver, and Siva, the Destroyer.

A lamellibranch which has three muscular scars on each valve.

Threefold.

See Trundle.

To put in the aspect of a trine.

Having three ribs or nerves extending unbranched from the base to the apex; -- said of a leaf.

Same as Trinervate.

A genus of limicoline birds including many species of sandpipers. See Dunlin, Knot, and Sandpiper.

A curtain rod for a bedstead.

Of or pertaining to Tringa, or the Sandpiper family.

One who believes in the doctrine of the Trinity.

The doctrine of the Trinity; the doctrine that there are three distinct persons in the Godhead.

Gun cotton; -- so called because regarded as containing three nitro groups.

Picric acid.

The union of three persons (the Father, the Son, and the Holy Ghost) in one Godhead, so that all the three are one God as to substance, but three persons as to individuality.

Triunity; trinity.