| 释义 |
Definition of orcein in English: orceinnoun ˈɔːsiːɪnˈôrsēin mass nounChemistry A red dye obtained from orchil, used as a microscopic stain. Example sentencesExamples - The chromosomes were stained with acetic orcein and visualized with a light microscope.
- The slide was immersed in 1% orcein in 45% acetic acid for 15 min, washed in distilled water, air-dried and a coverslip was mounted in Histomount (National Diagnostics, Hull, UK).
- After air drying, the cells were stained with 2% acetic orcein.
- The anthers of each flower were squashed in a drop of 2% acetic orcein to intensify the staining of meiotic cells.
- Chromosomes were counted in root tips stained with acetic orcein.
Origin Mid 19th century: alteration of orcin, another name for orcinol. Definition of orcein in US English: orceinnounˈôrsēin Chemistry A red dye obtained from orchil, used as a stain in microscopic study. Example sentencesExamples - The anthers of each flower were squashed in a drop of 2% acetic orcein to intensify the staining of meiotic cells.
- The chromosomes were stained with acetic orcein and visualized with a light microscope.
- The slide was immersed in 1% orcein in 45% acetic acid for 15 min, washed in distilled water, air-dried and a coverslip was mounted in Histomount (National Diagnostics, Hull, UK).
- After air drying, the cells were stained with 2% acetic orcein.
- Chromosomes were counted in root tips stained with acetic orcein.
Origin Mid 19th century: alteration of orcin, another name for orcinol. |