Definition

1. Noun:
   • A unit of mass: "ng" is an abbreviation for "nanogram," which is one billionth (1/1,000,000,000) of a gram. It is a metric unit used to measure extremely small masses, typically in scientific fields like chemistry, biology, and pharmacology.

Usage Examples

• Noun:
  • The sample contained only 5 ng of the DNA. (The sample contained only 5 nanograms of the DNA.)
  • Scientists can detect pollutants at concentrations as low as a few ng per liter. (Scientists can detect pollutants at concentrations as low as a few nanograms per liter.)

Advanced Usage

• Scientific Notation: Often used in scientific writing and data to express minute quantities without writing out the full decimal (e.g., 0.000000001 g).
  • The dosage was precisely 100 ng. (The dosage was precisely 100 nanograms.)

Variants and Related Words

• Nanogram (n): The full, unabbreviated form of "ng."

  • The standard abbreviation for nanogram is 'ng'. (The standard abbreviation for nanogram is 'ng'.)

• Microgram (μg or mcg): A larger unit of mass equal to one millionth of a gram (1/1,000,000 g). It is 1000 times larger than a nanogram.

• Picogram (pg): A smaller unit of mass equal to one trillionth of a gram (1/1,000,000,000,000 g). It is 1000 times smaller than a nanogram.

Synonyms

• No direct synonyms: As a specific unit of measurement, "ng" or "nanogram" does not have a true synonym. It can be described as a "submicroscopic unit of mass."

Related Phrases

• ng/L: Nanograms per liter, a common unit of concentration for substances in a solution, especially in environmental science.

  • The water safety limit for the toxin is 10 ng/L. (The water safety limit for the toxin is 10 nanograms per liter.)

• ng/mL: Nanograms per milliliter, a common unit of concentration in medical and biological assays.

  • The test measures the hormone level in ng/mL. (The test measures the hormone level in nanograms per milliliter.)

Noun

1. one billionth (1/1,000,000,000) gram