| NIDS | nonionic detergent soluble |
|---|---|
| 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 |
| TOP | termination of pregnancy |
| ADF | Acid Detergent Fiber |
| DRM | Detergent resistant membranes |
| anionic detergent | Detergents in which the hydrophilic funtion is fulfilled by an anionic grouping. Fatty acids are the best known natural products in this class, but it is doubtful if they have a specific detergent function in any biological system. The important synthetic species are aliphatic sulphate esters, for example sodium dodecyl sulphate (SDS or SLS). (18 Nov 1997) |
|---|---|
| nonionic detergent | <chemistry> Detergent in which the hydrophilic head group is uncharged. In practice hydrophilicity is usually conferred by OH groups. Examples are the polyoxyethylene p t octyl phenols known as Tritons and octyl glucoside. Nonionic detergents can be used to solubilise intrinsic membrane proteins with less tendency to denature them than charged detergents. They do not usually cause disassembly of structures such as microfilaments and microtubules that depend on protein protein interactions. (18 Nov 1997) |
| detergent | <chemistry> An agent which purifies or cleanses. <cell biology> Amphipathic, surface active, molecules with polar (water soluble) and nonpolar hydrophobic) domains. They bind strongly to hydrophobic molecules or molecular domains to confer water solubility. Examples include: sodium dodecyl sulphate, fatty acid salts, the Triton family, octyl glycoside. Origin: L. Detergere = to cleanse (18 Nov 1997) |
| zwitterionic detergent | Detergents that are zwitterionic; often used as surfactants and in the release of proteins from biomembranes. Synonym: zwitterionic detergent. Origin: zwitterion + detergent (05 Mar 2000) |
| 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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