| lat | bend lateral bending |
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| HhH | Helix-hairpin-Helix |
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| bend | 1. A turn or deflection from a straight line or from the proper direction or normal position; a curve; a crook; as, a slight bend of the body; a bend in a road. 2. Turn; purpose; inclination; ends. "Farewell, poor swain; thou art not for my bend." (Fletcher) 3. A knot by which one rope is fastened to another or to an anchor, spar, or post. 4. The best quality of sole leather; a butt. See Butt. 5. <chemical> Hard, indurated clay; bind. Bends of a ship, the thickest and strongest planks in her sides, more generally called wales. They have the beams, knees, and foothooks bolted to them. Also, the frames or ribs that form the ship's body from the keel to the top of the sides; as, the midship bend. See: Bend, and cf. Bent. Source: Websters Dictionary (01 Mar 1998) |
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| cold bend test | A test of the ability of a wire to be shaped; performed by counting the number of times a wire can be bent to a right angle and reversed at the same point before breaking; important in establishing specifications for orthodontic wires. (05 Mar 2000) |
| hairpin | The structure formed by a polynucleic acid by base-pairing between neighboring complementary sequences of a single strand of either DNA or RNA. (05 Mar 2000) |
| hairpin loop | An area where single-stranded DNA or RNA has folded back on itself and nucleotides from the two separate segments have base paired, so that the resulting structure appears as the name describes. (09 Oct 1997) |
| hairpin loops | Single-stranded DNA and RNA can fold back on itself under the proper conditions forming irregular double-helical loops. (05 Mar 2000) |
| hairpin bend | a U-shaped bend in a road |
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