| 释义 |
ext.
ext.abbr.1. extension2. a. externalb. externally3. extinct4. extra5. extractTranslationsEncyclopediaSeeextractext.
extract [ek´strakt] a concentrated preparation of a vegetable or animal drug.allergenic extract an extract of allergenic components from a crude preparation of an allergen, such as weed, grass, or tree pollen, molds, house dust, or animal dander, used for diagnostic skin testing or for immunotherapy for allergy.cell-free extract the solution obtained by rupturing cells and removing all particulate matter.LegalSeeExtract |