v. i. [ L. abortare, fr. abortus, p. p. of aboriri; ab + oriri to rise, to be born. See Orient. ] [ 1913 Webster ]

1. To miscarry; to bring forth young prematurely. [ 1913 Webster ]

2. (Biol.) To become checked in normal development, so as either to remain rudimentary or shrink away wholly; to become sterile. [ 1913 Webster ]

3. to stop, cease, or fail prior to normal completion. [ PJC ]

v. t. to cause (an action or process) to stop at an early stage, or before normal completion; as, to abort a rocket flight. [ PJC ]

n. [ L. abortus, fr. aboriri. ] 1. An untimely birth. [ Obs. ] Sir H. Wotton. [ 1913 Webster ]

2. An aborted offspring. [ Obs. ] Holland. [ 1913 Webster ]

a. 1. Brought forth prematurely. [ 1913 Webster ]

2. (Biol.) Rendered abortive or sterile; undeveloped; checked in normal development at a very early stage; as, spines are aborted branches. [ 1913 Webster ]

3. stopped prior to normal completion. [ PJC ]

The eyes of the cirripeds are more or less aborted in their mature state. Owen. [ 1913 Webster ]

n. [ L. abortus + caedere to kill. See Abort. ] (Med.) The act of destroying a fetus in the womb; feticide. [ archaic ] AS [ 1913 Webster ]

a. [ L. abortus (see Abort, v.) + faciens, p. pr. of facere to make. ] Producing miscarriage. -- n. A drug or an agent that causes premature delivery. [ 1913 Webster ]

n. [ L. abortio, fr. aboriri. See Abort. ] 1. The act of giving premature birth; particularly, the expulsion of the human fetus prematurely, or before it is capable of sustaining life; miscarriage. [ 1913 Webster ]

2. The immature product of an untimely birth; a fetus which has been delivered prematurely due to spontaneous or voluntary abortion, and is dead. [ 1913 Webster +PJC ]

3. (Biol.) Arrest of development of any organ, so that it remains an imperfect formation or is absorbed. [ 1913 Webster ]

4. Any fruit or produce that does not come to maturity, or anything which in its progress, before it is matured or perfect; a complete failure; as, his attempt proved an abortion. [ 1913 Webster ]

5. the removal of a fetus from the womb prior to normal delivery in a manner such as to cause the death of the fetus; also called voluntary abortion, or when performed by a physician, therapeutic abortion. [ PJC ]

In the 1913 Webster there was the following note appended to sense 1:
☞ It is sometimes used for the offense of procuring a premature delivery, but strictly the early delivery is the abortion, “causing or procuring abortion” is the full name of the offense. Abbott. [ PJC ]

6. something considered to be a repulsive or monstrous variant of a normal object; a monstrosity. [ PJC ]

a. Pertaining to abortion; miscarrying; abortive. Carlyle. [ 1913 Webster ]

n. One who performs or procures abortion; among medical personnel, also called an abortion provider. The word abortionist has negative connotations from the time when the practise was illegal in the United States, and the latter term is preferred among those who do not consider the procedure as morally reprehensible. [ 1913 Webster +PJC ]

n. same as abortionist. [ PJC ]

a. [ L. abortivus, fr. aboriri. See Abort, v. ] 1. Produced by abortion.as, an abortive child. [ R. ] [ 1913 Webster + AS ]

2. Made from the skin of a still-born animal; as, abortive vellum. [ Obs. ] [ 1913 Webster ]

3. Rendering fruitless or ineffectual. [ Obs. ] “Plunged in that abortive gulf.” Milton. [ 1913 Webster ]

4. Coming to naught; failing in its effect; miscarrying; fruitless; unsuccessful; as, an abortive attempt. “An abortive enterprise.” Prescott. [ 1913 Webster ]

5. (Biol.) Imperfectly formed or developed; rudimentary; sterile; as, an abortive organ, stamen, ovule, etc. AS [ 1913 Webster ]

6. (Med.) (a) Causing abortion; as, abortive medicines. Parr. AS (b) Cutting short the period of an illness; as, abortive treatment of typhoid fever. [ 1913 Webster + AS ]

n. 1. That which is born or brought forth prematurely; an abortion. [ Obs. ] Shak. [ 1913 Webster ]

2. A fruitless effort or issue. [ Obs. ] [ 1913 Webster ]

3. (Med.) A medicine to which is attributed the property of causing abortion; -- also called an abortifacient. Dunglison. [ 1913 Webster +PJC ]

adv. In an abortive or untimely manner; immaturely; fruitlessly. [ 1913 Webster ]

n. The quality of being abortive. [ 1913 Webster ]

n. Abortion. [ Obs. ] [ 1913 Webster ]

n. a fetus which has been aborted; same as abortion{ 2 }. [ PJC ]

a. [ As if fr. abstort, fr. L. ab, abs + tortus, p. p. of torquere to twist. ] Wrested away. [ Obs. ] Bailey. [ 1913 Webster ]

n. (Bot.) The common bistort or snakeweed (Polygonum bistorta). [ 1913 Webster ]

v. t. [ L. adhortari. See Adhortation. ] To exhort; to advise. [ Obs. ] Feltham. [ 1913 Webster ]

n. [ L. adhortatio, fr. adhortari to advise; ad + hortari to exhort. ] Advice; exhortation. [ Obs. ] Peacham. [ 1913 Webster ]

a. Containing counsel or warning; hortatory; advisory. [ Obs. ] Potter. [ 1913 Webster ]

n. [ LL. admortizatio. Cf. Amortization. ] (Law) The reducing or lands or tenements to mortmain. See Mortmain. [ 1913 Webster ]

adj. 1. of or pertaining to the adrenal cortex. [ WordNet 1.5 ]

adj. 1. stimulating or acting on the adrenal cortex [ WordNet 1.5 ]

n. 1. a growth hormone produced by the anterior pituitary gland; it stimulates the adrenal cortex.
Syn. -- adrenocorticotropic hormone, adrenocorticotrophic hormone, adrenocorticotrophin, corticotropin, corticotrophin, ACTH [ WordNet 1.5 ]

‖ [ L. ] (Logic & Math.) With stronger reason. [ 1913 Webster ]

n. 1. fitness to fly. “the plane received a certificate of airworthiness”. [ WordNet 1.5 ]

adj. 1. fit to fly; -- said of aircraft. Opposite of unairworthy. [ WordNet 1.5 ]

a. [ F. à la mort to the death. Cf. Amort. ] To the death; mortally. [ 1913 Webster ]

a. See Alamort. [ 1913 Webster ]

adj. prenom. 1. of the greatest importance. the all-important subject of disarmament
Syn. -- all important(predicate), crucial, essential, of the essence(predicate). [ WordNet 1.5 ]

a. [ Pref. a- + F. mort death, dead; all amort is for alamort. ] As if dead; lifeless; spiritless; dejected; depressed. Shak. [ 1913 Webster ]

v., n., a., n. Same as Amortize, Amortization, etc. [ 1913 Webster ]

a. [ Cf. F. amortissable. ] Capable of being cleared off, as a debt. [ 1913 Webster ]

n. [ LL. amortisatio, admortizatio. See Amortize, and cf. Admortization. ] 1. (Law) The act or right of alienating lands to a corporation, which was considered formerly as transferring them to dead hands, or in mortmain. [ 1913 Webster ]

2. The extinction of a debt, usually by means of a sinking fund; also, the money thus paid. Simmonds. [ 1913 Webster ]

v. t. [ OE. amortisen, LL. amortisare, admortizare, F. amortir to sell in mortmain, to extinguish; L. ad + mors death. See Mortmain ]. 1. To make as if dead; to destroy. [ Obs. ] Chaucer. [ 1913 Webster ]

2. (Law) To alienate in mortmain, that is, to convey to a corporation. See Mortmain. [ 1913 Webster ]

3. To clear off or extinguish, as a debt, usually by means of a sinking fund. [ 1913 Webster ]

n. [ F. amortissement. ] Same as Amortization. [ 1913 Webster ]

a. [ See Anorthite. ] (Min.) Having unequal oblique axes; as, anorthic crystals. [ 1913 Webster ]

n. [ Gr. 'an priv. + 'orqo`s straight ('orqh` sc. gwni`a right angle); not in a right angle. ] A mineral of the feldspar family, commonly occurring in small glassy crystals, also a constituent of some igneous rocks. It is a lime feldspar. See Feldspar. [ 1913 Webster ]

n. [ Gr. 'an priv. + orthoclase. ] (Min.) A feldspar closely related to orthoclase, but triclinic. It is chiefly a silicate of sodium, potassium, and aluminium. Sp. gr., 2.57 -- 2.60. [ Webster 1913 Suppl. ]

‖n. [ NL., fr. Gr. 'an priv. + ortho- + Gr. 'w`ps, 'wpo`s, the eye. ] (Med.) Distorted vision, in which straight lines appear bent. AS [ Webster 1913 Suppl. ]

n. [ Gr. 'an priv. + 'orqo`s straight + -scope. ] (Physics) An optical toy for producing amusing figures or pictures by means of two revolving disks, on one of which distorted figures are painted. [ 1913 Webster ]

n. [ F. anorthose triclinic feldspar (fr. Gr. 'an priv. + 'orqo`s straight) + -ite. ] (Petrol.) A granular igneous rock composed almost exclusively of a soda-lime feldspar, usually labradorite. [ Webster 1913 Suppl. ]

‖ [ L. ] Before death; -- generally used adjectively; as, an ante-mortem statement; ante-mortem examination. [ 1913 Webster ]

☞ The ante-mortem statement, or dying declaration made in view of death, by one injured, as to the cause and manner of the injury, is often receivable in evidence against one charged with causing the death. [ Webster 1913 Suppl. ]

n. [ Cf. LL. anteporta. ] An outer port, gate, or door. [ 1913 Webster ]

n. An outer porch or vestibule. [ 1913 Webster ]

a. opposed to legal voluntary abortion. [ PJC ]

n. a person who is opposed to legal voluntary abortion. [ PJC ]

n. [ NL., fr. Gr. &unr_;, fr. &unr_; to lift, heave. ] (Anat.) The great artery which carries the blood from the heart to all parts of the body except the lungs; the main trunk of the arterial system. [ 1913 Webster ]

☞ In fishes and the early stages of all higher vertebrates the aorta divides near its origin into several branches (the aortic arches) which pass in pairs round the œsophagus and unite to form the systemic aorta. One or more pairs of these arches persist in amphibia and reptiles, but only one arch in birds and mammals, this being on the right side in the former, and on the left in the latter. [ 1913 Webster ]

[ 1913 Webster ]

adj. 1. 1 of or pertaining to the aorta.
Syn. -- aortic [ WordNet 1.5 ]