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.

Consisting of three letters; trigrammic; as, a triliteral root or word. A triliteral word.

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.

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.

A kind of fishing net.

To give trinkets; hence, to court favor; to intrigue.

One who trinkets.

Ornaments of dress; trinkets, collectively.

To act secretly, or in an underhand way; to tamper.

Lasting during three nights; comprising three nights.

Having three knots or nodes; having three points from which a leaf may shoot; as, a trinodal stem.

Consisting of three terms; of or pertaining to trinomials; as, a trinomial root.

Trinomial.

A genus of Lower Silurian trilobites in which the glabella and cheeks form three rounded elevations on the head.

Three, considered collectively; three in company or acting together; a set of three; three united.

Of the value of three oboli; hence, mean; worthless.

An aspect of two planets with regard to the earth when they are three octants, or three eighths of a circle, that is, 135 degrees, distant from each other.

The third order of the Linnaean class Polygamia.

Having three sorts of flowers on the same or on different plants, some of the flowers being staminate, others pistillate, and others both staminate and pistillate; belonging to the order Tri/cia.

Same as Triplet.

See Olein.

A short poem or stanza of eight lines, in which the first line is repeated as the fourth and again as the seventh line, the second being, repeated as the eighth.

A compound similar to sulphonal, used as a hypnotic in medicine.

A division of chelonians which comprises Trionyx and allied genera; -- called also Trionychoides, and Trionychina.

A genus of fresh-water or river turtles which have the shell imperfectly developed and covered with a soft leathery skin. They are noted for their agility and rapacity. Called also soft tortoise, soft-shell tortoise, and mud turtle.

Same as Trier, 2 and 3.

A sugar derived from a trihydric alcohol A trisaccharide.

An oxide containing three atoms of oxygen; as, sulphur trioxide, SO3; -- formerly called tritoxide.

A quick, light step; a lively movement of the feet; a skip.

A palmitate derived from three molecules of palmitic acid.

See Palmitin.

See Trepang.

Divisible into three parts.

Dividing into three parts; -- said of a number which exactly divides another into three parts.

Divided into three parts; triparted; as, a tripartite leaf.

In a tripartite manner.

A division by threes, or into three parts; the taking of a third part of any number or quantity.

Including three passovers.

The large stomach of ruminating animals, when prepared for food.

Same as Rock tripe, under Rock.

Having three feet.

Same as Tripoli.

A man who prepares or sells tripe.

Same as Tripinnate.

Consisting of three persons.

A Trinitarian.

The state of existing as three persons in one Godhead; trinity.

A place where tripe is prepared or sold.

A variety of anhydrite composed of contorted plates fancied to resemble pieces of tripe.

Having the form or appearance of three petals; appearing as if furnished with three petals.

Having three petals, or flower leaves; three-petaled.

Spodumene.

A combination of three vowel sounds in a single syllable, forming a simple or compound sound; also, a union of three vowel characters, representing together a single sound; a trigraph; as, eye, -ieu in adieu, -eau in beau, are examples of triphthongs.

Of or pertaining to a triphthong; consisting of three vowel sounds pronounced together in a single syllable.