| mastectomy, simple | Removal of only the breast tissue and nipple and a small portion of the overlying skin. (12 Dec 1998) |
|---|---|
| mastectomy, subcutaneous | Excision of breast tissue with preservation of overlying skin, nipple, and areola so that breast form may be reconstructed. (12 Dec 1998) |
| master | 1. A male person having another living being so far subject to his will, that he can, in the main, control his or its actions; formerly used with much more extensive application than now. The employer of a servant. The owner of a slave. The person to whom an apprentice is articled. A sovereign, prince, or feudal noble; a chief, or one exercising similar authority. The head of a household. The male head of a school or college. A male teacher. The director of a number of persons performing a ceremony or sharing a feast. The owner of a docile brute, especially a dog or horse. The controller of a familiar spirit or other supernatural being. 2. One who uses, or controls at will, anything inanimate; as, to be master of one's time. "Master of a hundred thousand drachms." (Addison) "We are masters of the sea." (Jowett (Thucyd)) 3. One who has attained great skill in the use or application of anything; as, a master of oratorical art. "Great masters of ridicule." (Maccaulay) "No care is taken to improve young men in their own language, that they may thoroughly understand and be masters of it." (Locke) 4. A title given by courtesy, now commonly pronounced, except when given to boys; sometimes written Mister, but usually abbreviated to Mr. 5. A young gentleman; a lad, or small boy. "Where there are little masters and misses in a house, they are impediments to the diversions of the servants." (Swift) 6. The commander of a merchant vessel; usually called captain. Also, a commissioned officer in the navy ranking next above ensign and below lieutenant; formerly, an officer on a man-of-war who had immediate charge, under the commander, of sailing the vessel. 7. A person holding an office of authority among the Freemasons, especially. The presiding officer; also, a person holding a similar office in other civic societies. Little masters, certain German engravers of the 16th century, so called from the extreme smallness of their prints. Master in chancery, an officer of courts of equity, who acts as an assistant to the chancellor or judge, by inquiring into various matters referred to him, and reporting thereon to the court. Master of arts, one who takes the second degree at a university; also, the degree or title itself, indicated by the abbreviation M. A, or A. M. Master of the horse, the third great officer in the British court, having the management of the royal stables, etc. In ceremonial cavalcades he rides next to the sovereign. Master of the rolls, in England, an officer who has charge of the rolls and patents that pass the great seal, and of the records of the chancery, and acts as assistant judge of the court. . Past master, one who has held the office of master in a lodge of Freemasons or in a society similarly organised. The old masters, distinguished painters who preceded modern painters; especially, the celebrated painters of the 16th and 17th centuries. To be master of one's self, to have entire self-control; not to be governed by passion. To be one's own master, to be at liberty to act as one chooses without dictation from anybody. Master, signifying chief, principal, masterly, superior, thoroughly skilled, etc, is often used adjiectively or in compounds; as, master builder or master-builder, master chord or master-chord, master mason or master-mason, master workman or master-workman, master mechanic, master mind, master spirit, master passion, etc. "Throughout the city by the master gate." (Chaucer) Master joint, a tap for forming the thread in a screw cutting die. Master touch. The touch or skill of a master. Some part of a performance which exhibits very skillful work or treatment. "Some master touches of this admirable piece." . Master work, the most important work accomplished by a skilled person, as in architecture, literature, etc.; also, a work which shows the skill of a master; a masterpiece. Master workman, a man specially skilled in any art, handicraft, or trade, or who is an overseer, foreman, or employer. Origin: OE. Maistre, maister, OF. Maistre, mestre, F. Maitre, fr. L. Magister, orig. A double comparative from the root of magnus great, akin to Gr. Cf. Maestro, Magister, Magistrate, Magnitude, Major, Mister, Mistress, Mickle. Source: Websters Dictionary (01 Mar 1998) |
| master cast | A replica of the prepared tooth surfaces, residual ridge areas, and/or other parts of the dental arch as reproduced from an impression. (05 Mar 2000) |
| master eye | The eye that is customarily used for monocular tasks. Synonym: master eye. (05 Mar 2000) |
| master gland | pituitary gland |
| Master test | An early and long-used exercise challenge to identify ischemic heart disease using a pair of nine inch steps with a platform on top, the number of trips by the patient arbitrarily chosen and related to age and body weight. See: two-step exercise test. Synonym: Master's two-step exercise test. (05 Mar 2000) |
| Master's two-step exercise test | An early and long-used exercise challenge to identify ischemic heart disease using a pair of nine inch steps with a platform on top, the number of trips by the patient arbitrarily chosen and related to age and body weight. See: two-step exercise test. Synonym: Master's two-step exercise test. (05 Mar 2000) |
| Master, Arthur | U.S. Physician, *1895. See: Master test, Master's two-step exercise test. (05 Mar 2000) |
| Masters, William | <person> U.S. Gynecologist, *1915. See: Allen-Masters syndrome. (05 Mar 2000) |
| masterwort | <botany> A tall and coarse European umbelliferous plant (Peucedanum Ostruthium, formerly Imperatoria). The Astrantia major, a European umbelliferous plant with a showy coloured involucre. Improperly, the cow parsnip (Heracleum lanatum). Source: Websters Dictionary (01 Mar 1998) |
| mastery motive | An acquired need to be assertive, to stand out in a crowd, to be dominant. (05 Mar 2000) |
| mastic | 1. <botany> A low shrubby tree of the genus Pistacia (P. Lentiscus), growing upon the islands and coasts of the Mediterranean, and producing a valuable resin; called also, mastic tree. 2. A resin exuding from the mastic tree, and obtained by incision. The best is in yellowish white, semitransparent tears, of a faint smell, and is used as an astringent and an aromatic, also as an ingredient in varnishes. 3. A kind of cement composed of burnt clay, litharge, and linseed oil, used for plastering walls, etc. <botany> Barbary mastic, a lofty tree (Bursera gummifera) full of gum resin in every part. Origin: F, fr. L. Mastiche, mastichum, Gr, fr. To chew, because of its being used in the East for chewing Alternative forms: mastich. Source: Websters Dictionary (01 Mar 1998) |
| masticate | <dentistry> To chew your food and mix the food with saliva (08 Jan 1998) |
| masticating cycles | The patterns of mandibular movements formed during the chewing of food. (05 Mar 2000) |