| HME | Health Media Education; heat and moisture exchanger; heat, massage, and exercise |
|---|---|
| MCS | malignant carcinoid syndrome; managed care system; massage of the carotid sinus; mesocaval shunt; me... |
| CR | calculation rate; calculus removed; calorie-restricted; cardiac rehabilitation; cardiac resuscitatio... |
| TOP | termination of pregnancy; topoisomerase |
| top | topical |
| BBTV | Banana bunchy top virus |
|---|---|
| BCTV | Beet curly top virus |
| HME | Heat and Moisture Exchangers |
| HMC | High moisture corn |
| MC | moisture content |
| guard | 1. One who, or that which, guards from injury, danger, exposure, or attack; defense; protection. "His greatness was no guard to bar heaven's shaft." (Shak) 2. A man, or body of men, stationed to protect or control a person or position; a watch; a sentinel. "The guard which kept the door of the king's house." Kings xiv. 27. 3. One who has charge of a mail coach or a railway train; a conductor. 4. Any fixture or attachment designed to protect or secure against injury, soiling, or defacement, theft or loss; as: That part of a sword hilt which protects the hand. Ornamental lace or hem protecting the edge of a garment. A chain or cord for fastening a watch to one's person or dress. A fence or rail to prevent falling from the deck of a vessel. An extension of the deck of a vessel beyond the hull; especially, in side-wheel steam vessels, the framework of strong timbers, which curves out on each side beyond the paddle wheel, and protects it and the shaft against collision. A plate of metal, beneath the stock, or the lock frame, of a gun or pistol, having a loop, called a bow, to protect the trigger. An interleaved strip at the back, as in a scrap book, to guard against its breaking when filled. 5. A posture of defense in fencing, and in bayonet and saber exercise. 6. An expression or admission intended to secure against objections or censure. "They have expressed themselves with as few guards and restrictions as I." (Atterbury) 7. Watch; heed; care; attention; as, to keep guard. 8. <zoology> The fibrous sheath which covers the phragmacone of the Belemnites. Guard is often used adjectively or in combination; as, guard boat or guardboat; guardroom or guard room; guard duty. Advanced guard, Coast guard, etc. See Advanced, Coast, etc. Grand guard, one of the posts of the second line belonging to a system of advance posts of an army. Guard boat. A boat appointed to row the rounds among ships of war in a harbor, to see that their officers keep a good lookout. A boat used by harbor authorities to enforce the observance of quarantine regulations. <botany> Guard cells, to go on duty as a guard or sentinel. To run the guard, to pass the watch or sentinel without leave. Synonym: Defense, shield, protection, safeguard, convoy, escort, care, attention, watch, heed. Origin: OF. Guarde, F. Garde; of German origin; cf. OHG. Wart, marto, one who watches, mata a watching, Goth. Wardja watchman. See Guard. Source: Websters Dictionary (01 Mar 1998) |
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| guard cell | <plant biology> Plant cells occurring in pairs in the epidermis, flanking each stoma. Changes in turgor in the guard cells cause the stoma to open and close. (18 Nov 1997) |
| aquic moisture regime | <ecology> A moisture condition associated with a seasonal reducing environment that is virtually free of dissolved oxygen because the soil is saturated by ground water or by water of the capillary fringe as in soils in aquic suborders and aquic subgroups. (09 Oct 1997) |
| peraquic moisture regime | A soil condition in which reducing conditions always occur due to the presence of ground water at or near the soil surface. (09 Oct 1997) |
| moisture content | (MC) The weight of the water contained in wood, usually expressed as a percentage of weight, either oven-dry or as received. (05 Dec 1998) |
| top | 1. To cover on the top; to tip; to cap; chiefly used in the past participle. "Like moving mountains topped with snow." (Waller) "A mount Of alabaster, topped with golden spires." (Milton) 2. To rise above; to excel; to outgo; to surpass. "Topping all others in boasting." (Shak) "Edmund the base shall top the legitimate." (Shak) 3. To rise to the top of; to go over the top of. "But wind about till thou hast topped the hill." (Denham) 4. To take off the or upper part of; to crop. "Top your rose trees a little with your knife." (Evelyn) 5. To perform eminently, or better than before. "From endeavoring universally to top their parts, they will go universally beyond them." (Jeffrey) 6. To raise one end of, as a yard, so that that end becomes higher than the other. To top off, to complete by putting on, or finishing, the top or uppermost part of; as, to top off a stack of hay; hence, to complete; to finish; to adorn. 1. A child's toy, commonly in the form of a conoid or pear, made to spin on its point, usually by drawing off a string wound round its surface or stem, the motion being sometimes continued by means of a whip. 2. A plug, or conical block of wood, with longitudital grooves on its surface, in which the strands of the rope slide in the process of twisting. Origin: CF. OD. Dop, top, OHG, MNG, & dial. G. Topf; perhaps akin to G. Topf a pot. 1. The highest part of anything; the upper end, edge, or extremity; the upper side or surface; summit; apex; vertex; cover; lid; as, the top of a spire; the top of a house; the top of a mountain; the top of the ground. "The star that bids the shepherd fold, Now the top of heaven doth hold." (Milton) 2. The utmost degree; the acme; the summit. "The top of my ambition is to contribute to that work." (Pope) 3. The highest rank; the most honorable position; the utmost attainable place; as, to be at the top of one's class, or at the top of the school. "And wears upon hisbaby brow the round And top of sovereignty." (Shak) 4. The chief person; the most prominent one. "Other . . . Aspired to be the top of zealots." (Milton) 5. The crown of the head, or the hair upon it; the head. "From top to toe" "All the stored vengeance of Heaven fall On her ungrateful top !" (Shak) 6. The head, or upper part, of a plant. "The buds . . . Are called heads, or tops, as cabbageheads." (I. Watts) 7. A platform surrounding the head of the lower mast and projecting on all sudes. It serves to spead the topmast rigging, thus strengheningthe mast, and also furnishes a convenient standing place for the men aloft. 8. A bundle or ball of slivers of comkbed wool, from which the noils, or dust, have been taken out. 9. Eve; verge; point. "He was upon the top of his marriage with Magdaleine." 10. The part of a cut gem between the girdle, or circumference, and the table, or flat upper surface. Top is often used adjectively or as the first part of compound words, usually self-explaining; as, top stone, or topstone; top-boots, or top boots; top soil, or top-soil. Top and but, a phrase used to denote a method of working long tapering planks by bringing the but of one plank to the top of the other to make up a constant breadth in two layers. <zoology> Top minnow, a small viviparous fresh water fish (Gambusia patruelis) abundant in the Southern United States. Also applied to other similar species. Origin: AS. Top; akin to OFries. Top a tuft, D. Top top, OHG. Zopf end, tip, tuft of hair, G. Zopf tuft of hair, pigtail, top of a tree, Icel. Toppr a tuft of hair, crest, top, Dan. Top, Sw. Topp pinnacle, top; of uncertain origin. Cf. Tuft. Source: Websters Dictionary (01 Mar 1998) |
| top-shaped | <botany> Having the shape of a top; cone-shaped, with the apex downward; turbinate. Source: Websters Dictionary (01 Mar 1998) |
| top-shell | <zoology> Any one of numerous species of marine top_shaped shells of the genus Thochus, or family Trochidae. Source: Websters Dictionary (01 Mar 1998) |
| turban-top | <botany> A kind of fungus with an irregularly wrinkled, somewhat globular pileus (Helvella, or Gyromitra, esculenta). Source: Websters Dictionary (01 Mar 1998) |
| flat top waves | Activity in the electroencephalogram having a pattern suggesting a flat top; these wave's are often found in temporal lobe discharges. (05 Mar 2000) |
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