Definition

1. Noun:
   • A quantity expressed in two different units: A "compound number" is a numerical value that combines two distinct units of measurement to represent a single quantity. It is not a mathematical term for a number like a composite number, but rather a descriptive term for a mixed-unit value.

Examples of Usage

• Noun:
  • The recipe called for a cooking time of one hour and fifteen minutes, a compound number.
  • He ran the race in two minutes and thirty seconds, which is a compound number.
  • The baby's weight was recorded as eight pounds and six ounces, a classic compound number.

Advanced Usage

• In Descriptive Contexts: The term is often used in instructional or descriptive texts to clarify that a measurement is not in a single, decimalized unit.
  • Please express the duration as a compound number of hours and minutes, not as a decimal.

Variants and Related Words

• Compound Measure (n): A similar concept often used in mathematics, referring to a quantity derived from the combination of other measurements (e.g., speed as miles hour).
• Mixed Number (n): In arithmetic, a number consisting of an integer and a fraction (e.g., 2 ½). This is a different, purely numerical concept.

Synonyms

• Mixed-unit quantity: A phrase describing the same idea.
• Dual-unit value: Emphasizes the two different units involved.

Related Phrases

• Expressed in compound form: Describes how a measurement is written or stated.
  • The distance was expressed in compound form: three feet and seven inches.

Related Idioms

• The term "compound number" is technical and not typically used in idiomatic expressions.

Noun

1. a quantity expressed in two different units
   • one hour and ten minutes