dg
Học thuậtThân thiện
Definition
- Noun:
- Decigram: A unit of mass in the metric system equal to one-tenth of a gram (0.1 g or 10⁻¹ g). It is a rarely used subunit.
Usage
- The abbreviation "dg" is used primarily in scientific, medical, or technical contexts to denote mass, though the gram (g) or milligram (mg) are more common.
- It is typically written in lowercase ("dg") and follows a numeral.
Examples
- Noun:
- The recipe called for 5 dg of saffron, a very precious spice.
- In the old chemistry report, the sample mass was listed as 2 dg.
Advanced Usage
- Scientific Notation: Often expressed as 10⁻¹ g or 0.1 g in calculations to avoid ambiguity.
- Contextual Note: While "dg" is a valid unit, in practice, masses are frequently expressed in grams or milligrams (1000 mg = 1 g; 100 dg = 10 g). You are more likely to see "100 mg" than "1 dg".
Variants and Related Words
- Gram (g): The base unit of mass in the metric system.
- Decagram (dag): A unit equal to ten grams.
- Centigram (cg): A unit equal to one-hundredth of a gram (0.01 g).
- Milligram (mg): A unit equal to one-thousandth of a gram (0.001 g).
Synonyms
- Tenth of a gram: The descriptive equivalent.
- 0.1 gram: The decimal equivalent.
Notes
- "dg" is an initialism for "decigram". It is not a word that is spoken as individual letters; one would say "decigram" in speech.
- This unit is not commonly encountered in everyday use (e.g., grocery stores, common recipes) in many English-speaking countries, which may use ounces or grams directly.
Noun
- 1/10 gram