an enzyme found in most plant and animal cells that functions as an oxidative catalyst; it decomposes hydrogen peroxide into hydrogen and water.

of, pertaining to, or characteristic of catalases.

Wanting a syllable at the end, or terminating in an imperfect foot; as, a catalectic verse.

A sudden suspension of sensation and volition, the body and limbs preserving the position that may be given them, while the action of the heart and lungs continues.

Pertaining to, or resembling, catalepsy; affected with catalepsy; as, a cataleptic fit.

A division of Protozoa, of which Magosph/ra is the type. They exist both in a myxopod state, with branched pseudopodia, and in the form of ciliated bodies united in free, spherical colonies.

The science of exchanges, a branch of political economy.

Catalogue.

To insert in a catalogue; to register; to catalogue.

To make a list or catalogue; to insert in a catalogue.

A maker of catalogues; esp. one skilled in the making of catalogues.

a geographical and administrative region of northeastern Spain.

A genus of American and East Indian trees, of which the best known species are the Catalpa bignonioides, a large, ornamental North American tree, with spotted white flowers and long cylindrical pods, and the Catalpa speciosa, of the Mississipi valley; -- called also Indian bean.

a type of brightly colored carnivorous fish (Priacanthus arenatus) of the West Atlantic and West Indies waters.

same as catalyze.

a substance that initiates or accelerates a chemical reaction without itself being affected; as, thousands of enzymes serve in concert as calaysts to produce the sequence of reactions we call /life/; the industrial production of cheap ammonia depended on finding a good catalyst.

An agent employed in catalysis, as platinum black, aluminium chloride, etc.

to cause (a chemical reaction) to proceed more quickly by contacting the reactant(s) with another substance; as, moisture catalyzes the oxidation of iron in air.

A kind of raft or float, consisting of two or more logs or pieces of wood lashed together, and moved by paddles or sail; -- used as a surf boat and for other purposes on the coasts of the East and West Indies and South America. Modified forms are much used in the lumber regions of North America, and at life-saving stations.

The monthly courses of women; menstrual discharges; menses.

Pertaining to the catamenia, or menstrual discharges.

A boy kept for unnatural purposes.

The cougar. Applied also, in some parts of the United States, to the lynx.

Ascending and descending fresh streams from and to the sea, as the salmon; anadromous.

A compound medicinal powder, used by the ancients to sprinkle on ulcers, to absorb perspiration, etc.

Of or pertaining to a catapult.

Having the petals held together by stamens, which grow to their bases, as in the mallow.

Of or relating to cataphonics; catacoustic.

That branch of acoustics which treats of reflected sounds; catacoustics.

Covered with a cataphract, or armor of plates, scales, etc.; or with that which corresponds to this, as horny or bony plates, hard, callous skin, etc.

Of, pertaining to, or resembling, a cataphract.

Unnatural; contrary to nature.

A soft and moist substance applied externally to some part of the body; a poultice.

A morbid condition caused by an overwhelming shock or extreme fear and marked by rigidity of the muscles.

Spurge.

A great fall of water over a precipice; a large waterfall.

Of the nature of a cataract in the eye; affected with cataract.

An inflammatory affection of any mucous membrane, in which there are congestion, swelling, and an altertion in the quantity and quality of mucus secreted; as, catarrh of the stomach; catarrh of the bladder.

Pertaining to, produced by, or attending, catarrh; of the nature of catarrh.

One of the Catarrhina, a division of Quadrumana, including the Old World monkeys and apes which have the nostrils close together and turned downward. See Monkey.

Catarrhal.

Checking evacuations through astringent or styptic qualities.

That part of a speech, usually the exordium, in which the orator sets forth the subject matter to be discussed.

A placing among the stars; a catalogue of stars.

An event producing a subversion of the order or system of things; a final event, usually of a calamitous or disastrous nature; hence, sudden calamity; great misfortune.

Of a pertaining to a catastrophe.

The doctrine that the geological changes in the earth's crust have been caused by the sudden action of violent physical causes; -- opposed to the doctrine of uniformism.

One who holds the theory or catastrophism.

an abnormal behavioral syndrome characterized by stupor, negativism, and muscular rigidity, sometimes alternating with purposeless excitement, and seen most frequently in schizophrenia; called also catatonic schizophrenia.

a person suffering from catatonia.

A well known light red variety of American grape.

An Appalachian tribe of Indians which originally inhabited the regions near the Catawba river and the head waters of the Santee.

An American bird (Galeoscoptes Carolinensis), allied to the mocking bird, and like it capable of imitating the notes of other birds, but less perfectly. Its note resembles at times the mewing of a cat.

A small sailboat, with a single mast placed as far forward as possible, carring a sail extended by a gaff and long boom. See Illustration in Appendix.

a very prickly woody vine of eastern U.S. (Smilax rotundifolia) growing in tangled masses, having tough round stems with shiny leathery leaves and small greenish flowers followed by clusters of inedible shiny black berries.

A sound like the cry of a cat, such as is made in playhouses to express dissatisfaction with a play; also, a small shrill instrument for making such a noise.

Act of seizing; a grasp.

Any crop grown between the rows of another crop or intermediate between two crops in ordinary rotation in point of time.

A cistern or vault at the point where a street gutter discharges into a sewer, to catch bulky matters which would not pass readily through the sewer.

A meadow irrigated by water from a spring or rivulet on the side of hill.

A ditch or drain along the side of a hill to catch the surface water; also, a ditch at the side of a canal to catch the surplus water.

One who, or that which, catches.

A plant with the joints of the stem, and sometimes other parts, covered with a viscid secretion to which small insects adhere. The species of Silene are examples of the catchfly.

The act of seizing or taking hold of.

A surface of ground on which water may be caught and collected into a reservoir.

Made or contrived for getting small sums of money from the ignorant or unwary; as, a catchpenny book; a catchpenny show. Some worthless catchpenny thing.

A bailiff's assistant.

A ditch or drain for catching water. See Catchdrain.

See Cleavers.

Without any additional weight; without being handicapped; as, to ride catchweight.

Among theatrical performers, the last word of the preceding speaker, which reminds one that he is to speak next; cue.

A work or artificial water-course for throwing water on lands that lie on the slopes of hills; a catchdrain.

Apt or tending to catch the fancy or attention; catching; taking; as, catchy music.

Food.

Relating to or consisting in, asking questions and receiving answers, according to the ancient manner of teaching.

In a catechetical manner; by question and answer.

The science or practice of instructing by questions and answers.

One of the tannic acids (C15H14O6), extracted from catechu as a white, crystalline substance; -- called also catechuic acid, catechinic acid, cyanidol, and catechuin. It is a flavonoid found generally in higher woody plants, and is used in dyeing and tanning.

The act of catechising.

One who catechises.

A form of instruction by means of questions and answers.

Of or pertaining to a catechism, having the form of questions and answers; catechetical.

One who instructs by question and answer, especially in religions matters.

Of or pertaining to a catechist or to a catechism.

See Catechise.

any of a group of chemicals having a benzene ring substituted with two hydroxyl groups in ortho position, especially ortho-dihydroxybenzene itself (C6H6O2), also called pyrocatechol, used in photography and as a reagent.

any of a group of chemicals including epinephrine and norepinephrine that are produced in the medulla of the adrenal gland. They function as nerotransmitters in the sympathetic nervous system. Also, any structurally related chemical substance, whether natural or synthetic.

A dry, brown, astringent extract, obtained by decoction and evaporation from the Acacia catechu, and several other plants growing in India. It contains a large portion of tannin or tannic acid, and is used in medicine and in the arts. It is also known by the names terra japonica, cutch, gambier, etc.

Of or pertaining to catechu or its derivatives. See catechin.

One who is receiving rudimentary instruction in the doctrines of Christianity; a neophyte; in the primitive church, one officially recognized as a Christian, and admitted to instruction preliminary to admission to full membership in the church.

The state or condition of a catechumen or the time during which one is a catechumen.

Of or pertaining to catechumens; as, catechumenical instructions.

A catechumen.

Capable of being employed by itself as a term; -- said of a word.

Of or pertaining to a category.

Absolutely; directly; expressly; positively; as, to affirm categorically.

The quality of being categorical, positive, or absolute.

One who inserts in a category or list; one who classifies.

To insert in a category or list; to class; to catalogue.

placed in a category.

One of the highest classes to which the objects of knowledge or thought can be reduced, and by which they can be arranged in a system; an ultimate or undecomposable conception; a predicament.

Property; -- often used by Chaucer in contrast with rent, or income.

The negative electrode or pole of a voltaic battery.

Relating to, or characterized by, catelectrotonus.

The condition of increased irritability of a nerve in the region of the cathode or negative electrode, on the passage of a current of electricity through it.

A chain or series of things connected with each other.

Relating to a chain; like a chain; as, a catenary curve.

The curve formed by a rope or chain of uniform density and perfect flexibility, hanging freely between two points of suspension, not in the same vertical line.

To connect, in a series of links or ties; to chain.

Connection of links or union of parts, as in a chain; a regular or connected series. See Concatenation.

Consisting of little links or chains.

To cut diagonally.

Diagonal.

A remote relation. See Quater-cousin.

A Highland robber: a kind of irregular soldier.

One who caters.

A woman who caters.

The larval state of a butterfly or any lepidopterous insect; sometimes, but less commonly, the larval state of other insects, as the sawflies, which are also called false caterpillars. The true caterpillars have three pairs of true legs, and several pairs of abdominal fleshy legs (prolegs) armed with hooks. Some are hairy, others naked. They usually feed on leaves, fruit, and succulent vegetables, being often very destructive, Many of them are popularly called worms, as the cutworm, cankerworm, army worm, cotton worm, silkworm.

an endless belt looped over several wheels, used in pairs in place of wheels to propel vehicles, such as tractors or military tanks, over rough ground.

having caterpillar treads or tracks on the wheels; as, a caterpillar-tracked earthmover.