| Hirschfeld | Isador, U.S. Dentist, 1881-1965. See: Hirschfeld's canals. (05 Mar 2000) |
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| Hirschfeld's canals | Canal's that extend vertically through alveolar bone between roots of mandibular and maxillary incisor and maxillary bicuspid teeth. Synonym: Hirschfeld's canals. (05 Mar 2000) |
| Birch-Hirschfeld | Felix V., German pathologist, 1842-1899. See: Birch-Hirschfeld stain. (05 Mar 2000) |
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| Birch-Hirschfeld stain | <technique> An obsolete stain for demonstrating amyloid, using Bismarck brown and crystal violet; amyloid is usually stained a bright ruby red, whereas the cytoplasm of cells is not stained and nuclei are brown. (05 Mar 2000) |