picometre

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The word "picometre" (pronounced "pee-koh-meter") is a noun that refers to a very small unit of length in the metric system. Here’s an easy breakdown:

Definition:

• A picometre is equal to one trillionth of a meter. This means there are 1,000,000,000,000 picometres in one meter.

Usage:

• Picometres are mostly used in scientific fields, especially in physics and chemistry, to measure extremely small distances, such as the size of atoms or molecules.

Example:

• "The diameter of a hydrogen atom is about 53 picometres."

Advanced Usage:

• In advanced scientific contexts, picometres are used to measure wavelengths of gamma rays or the distance between atoms in a crystal lattice.

Word Variants:

• The word "picometre" can also be spelled as "picometer" in American English. However, both mean the same thing.

Different Meanings:

• The term "picometre" doesn’t have different meanings outside of its context as a unit of length. It is specific to measurements.

Synonyms:

• There are no direct synonyms for "picometre" because it is a specific measurement. However, related units of measurement that measure small distances include:
  • Nanometre (1 nanometre = 1,000 picometres)
  • Angstrom (1 angstrom = 100 picometres)

Idioms and Phrasal Verbs:

• There are no common idioms or phrasal verbs that include the word "picometre." It’s a technical term used mainly in scientific discussions.

Summary:

A picometre is a very tiny unit of measurement used mainly in science. It helps scientists describe things that are extremely small, like atoms.

Academic

Noun

1. a metric unit of length equal to one trillionth of a meter

Synonyms

• picometer
• micromicron