| 释义 |
l-
L- In biochemistry, a symbol used as a prefix to indicate the spatial configuration of certain organic compounds with asymmetric carbon atoms. It is used if an organic compound has a configuration about an asymmetric carbon atom analogous to that of L-glyceraldehyde (the arbitrarily chosen standard), in which the hydroxy (OH) functional group is on the left side of the asymmetric carbon atom in a Fischer projection formula: an L-amino acid.
[From l(evorotatory).]
l-The symbol for levorotatory.L, l (ɛl)
n., pl. Ls L's, ls or l's. 1. the 12th letter of the English alphabet, a consonant. 2. any spoken sound represented by this letter. 3. something shaped like an L. 4. a written or printed representation of the letter L or l. L (ɛl)
n., pl. L's Ls. ell. L 1. lambert. 2. language. 3. large. 4. Latin. 5. left. 6. length. 7. Brit. pound. [< Latin lībra] 8. long. 9. longitude. L
Symbol. 1. the 12th in order or in a series. 2. (sometimes l.c.) the Roman numeral for 50. Compare Roman numerals. 3. leucine. l 1. large. 2. liter. l-
Biochem. Symbol. (of a molecule) having a configuration resembling the levorotatory isomer of glyceraldehyde: printed as a small capital, roman character (disting. from d-). l-
Symbol. levorotatory; levo- (disting. from d-). L- levo-. L. 1. lady. 2. lake. 3. large. 4. Latin. 5. latitude. 6. law. 7. left. 8. lempira. 9. leu; lei. 10. lev; leva. 11. book. [< Latin liber] 12. Liberal. 13. lira; lire. 14. lord. 15. low. 16. lumen. 17. stage left. l. 1. leaf. 2. league. 3. left. 4. length. 5.
pl. ll., line. 6. link. 7. liter. EncyclopediaSeeLl-
l- abbreviation for levo- (left or counterclockwise); a chemical prefix indicating an enantiomer" >enantiomer that rotates the plane of polarization of a beam of light in the counterclockwise direction, the other enantiomer being specified as d-. For further explanation, see d-.
l- a chemical prefix that specifies the relative chemical configuration of an enantiomer, carbohydrates corresponding to l-glyceraldehyde and amino acids corresponding to l-serine; see d-" >d- for further explanation.l-Levorotatory. Compare: d-. [L. laevus, on the left-hand side]
l-Prefix indicating a chemical compound to be structurally (sterically) related to l-glyceraldehyde. Compare: d-. L- In biochemistry, a symbol used as a prefix to indicate the spatial configuration of certain organic compounds with asymmetric carbon atoms. It is used if an organic compound has a configuration about an asymmetric carbon atom analogous to that of L-glyceraldehyde (the arbitrarily chosen standard), in which the hydroxy (OH) functional group is on the left side of the asymmetric carbon atom in a Fischer projection formula: an L-amino acid.
l-The symbol for levorotatoryl- 1. Abbreviation for levorotatory.
Compare: d2. Prefix indicating a chemical compound to be structurally (sterically) related to l-glyceraldehyde. [L. laevus, on the left-hand side]L-
| Acronym | Definition |
|---|
| L-➣Fisher-Kasteleyn-Temperley (method to compute the number of Perfect Matchings) |
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