Tetrad: meaning, definitions and examples

Typically used in scientific or mathematical contexts to describe a group or set of four related things.

• The cell undergoes division to form a tetrad.
• In geometry, a tetrad refers to four connected points.

Most often used in music to describe a group of four musicians or singers performing together.

• The string quartet played beautifully at the wedding.
• They formed a jazz quartet that quickly gained popularity.

Primarily used in the context of childbirth to refer to four children born at the same time to the same mother.

• The quadruplets were born healthy and strong.
• Raising quadruplets requires a lot of patience and resources.

Commonly used to describe a group consisting of four parts or members, often in music or assembled items.

• The band's new album features a four-piece ensemble.
• She bought a four-piece luggage set for her trip.

This term is commonly used in scientific and mathematical contexts to refer to a group or set of four things.

• The scientist examined the tetrad of genes responsible for the trait
• The math problem asked for the sum of the numbers in the tetrad

Most often used in musical or artistic contexts to describe a group of four performers or instruments.

• The string quartet played beautifully at the concert
• They formed a vocal quartet for the school talent show

Typically found in more general usage, this phrase simply refers to any collection or set of four items.

• He bought a four-set of chairs for the new dining room
• The puzzle included a four-set of clues to solve the mystery