Definition of carborundum in English:

carborundum

noun ˌkɑːbəˈrʌndəmˌkɑrbəˈrəndəm

mass nountrademark

A very hard black solid consisting of silicon carbide, used as an abrasive.
金刚砂，碳化硅
Example sentencesExamples
- Control plants were also dusted with carborundum and mock inoculated with a sample volume of potassium phosphate buffer.
- Before inoculating, 600-mesh carborundum was dusted on the leaves.
- The upper epidermis of the leaf was abraded with carborundum.
- A compound known as silicon carbide, also known as carborundum, is one of the hardest substances known.
- Surfaces can be smoothed down by rasps, files, and rifflers or by carborundum and emery, and the addition of water avoids a build-up of dust.

Origin

Late 19th century (originally US, as a trademark): blend of carbon and corundum.

Definition of carborundum in US English:

carborundum

nounˌkɑrbəˈrəndəmˌkärbəˈrəndəm

trademark

A very hard black solid consisting of silicon carbide, used as an abrasive.
金刚砂，碳化硅
Example sentencesExamples
- Surfaces can be smoothed down by rasps, files, and rifflers or by carborundum and emery, and the addition of water avoids a build-up of dust.
- Before inoculating, 600-mesh carborundum was dusted on the leaves.
- The upper epidermis of the leaf was abraded with carborundum.
- A compound known as silicon carbide, also known as carborundum, is one of the hardest substances known.
- Control plants were also dusted with carborundum and mock inoculated with a sample volume of potassium phosphate buffer.

Origin

Late 19th century (originally US, as a trademark): blend of carbon and corundum.

词汇	carborundum
释义	Definition of carborundum in English: carborundum noun ˌkɑːbəˈrʌndəmˌkɑrbəˈrəndəm mass nountrademark A very hard black solid consisting of silicon carbide, used as an abrasive. 金刚砂，碳化硅 Example sentencesExamples Control plants were also dusted with carborundum and mock inoculated with a sample volume of potassium phosphate buffer. Before inoculating, 600-mesh carborundum was dusted on the leaves. The upper epidermis of the leaf was abraded with carborundum. A compound known as silicon carbide, also known as carborundum, is one of the hardest substances known. Surfaces can be smoothed down by rasps, files, and rifflers or by carborundum and emery, and the addition of water avoids a build-up of dust. Origin Late 19th century (originally US, as a trademark): blend of carbon and corundum. Definition of carborundum in US English: carborundum nounˌkɑrbəˈrəndəmˌkärbəˈrəndəm trademark A very hard black solid consisting of silicon carbide, used as an abrasive. 金刚砂，碳化硅 Example sentencesExamples Surfaces can be smoothed down by rasps, files, and rifflers or by carborundum and emery, and the addition of water avoids a build-up of dust. Before inoculating, 600-mesh carborundum was dusted on the leaves. The upper epidermis of the leaf was abraded with carborundum. A compound known as silicon carbide, also known as carborundum, is one of the hardest substances known. Control plants were also dusted with carborundum and mock inoculated with a sample volume of potassium phosphate buffer. Origin Late 19th century (originally US, as a trademark): blend of carbon and corundum.
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