| Hofmeister gastrectomy | Hofmeister's operation in which a portion of the stomach is removed and a retrocolic gastrojejunostomy is constructed in an end-to-side fashion to only the greater curvature portion of the transected stomach. (05 Mar 2000) |
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| Hofmeister series | <chemistry> The series of cations Magnesium, Calcium, Sr2+, Ba2+, Li+, Na+, K+, Rb+, Cs+, and of anions citrate3-, tartrate2-, SO42-, acetate-, NO3-, CIO3-, I-, CNS- (among others). Each series is arranged in order of decreasing ability to: 1) precipitate the dispersed substance of lyophilic soltions; 2) "salt out" organic substances (e.g., aniline, ethyl acetate) from aqueous solutions; or 3) inhibit the swelling of gels. These effects, among other related ones, are ascribable to the abstraction and binding of water by these ions (i.e., hydration), which also decreases in the orders given, so that (in the monovalent cation series) Li+, with the smallest crystal radius, has the largest hydrated radius, and vice versa for Cs+. Synonym: lyotropic series. (05 Mar 2000) |
| Hofmeister's operation | Partial gastrectomy with closure of a portion of the lesser curvature and retrocolic anastomosis of the remainder to jejunum. (05 Mar 2000) |
| Hofmeister, Franz | <person> German biochemist, 1850-1922. See: Hofmeister series, Hofmeister gastrectomy. (05 Mar 2000) |
| Hofmeister, Franz von | <person> German surgeon, 1867-1926. See: Hofmeister's operation, Hofmeister-Polyaanastomosis. (05 Mar 2000) |
| Hofmeister-Polya anastomosis | More specifically see Hofmeister's operation, Polya's operation. (05 Mar 2000) |
| Hofmeister s. |
the sequence of ions arranged with respect to their effects on the solubility of proteins, e.g., on their salting-out effects; called also lyotropic s.
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| Hofmeister's t. |
1. (for leucine) warm the suspected liquid with mercurous nitrate; if leucine is present, metallic mercury is deposited. 2. (for peptones) mix phosphotungstic and hydrochloric acids; let the mixture stand twenty-four hours, and filter. With this reagent a solution containing peptones with no albumin will afford a precipitate.
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| Hofmeister's test |
see under test.
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