Definition of orcein in English:

orcein

noun 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:

orcein

nounˈôrsēin

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.

单词	orcein
释义	Definition of orcein in English: orcein noun 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: orcein nounˈôrsēin 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.
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