septimal

A composer writes a septimal musical scale.

Definition

Adjective:
- Relating to the number seven: "septimal" describes something that is based on, pertains to, or involves the number seven, especially in systems of measurement, music, or mathematics.
- Divided into seven parts: It can also refer to something that is divided into seven equal parts or arranged in groups of seven.

Usage Examples

Advanced Usage

Septimal numeral system: A base-7 number system, where digits range from 0 to 6.
- The septimal representation of the decimal number 10 is 13. (In base-7, 10 is written as 1×7 + 3.)
Septimal harmony: In music, chords or intervals that use the seventh harmonic or are based on the number seven.
- The composer explored septimal harmonies in his experimental piece. (Harmonies derived from the number seven.)

Variants and Related Words

Septenary (adj): consisting of or relating to seven; often used interchangeably with "septimal" but more common in general contexts.
- The septenary system of classification has seven categories. (A system based on seven.)
Septimality (n): the quality or state of being septimal.
- The septimality of the ancient number system is evident in its cycles. (The property of being based on seven.)
Septimole (n): in music, a group of seven notes played in the time of four or six.
- The pianist executed the septimole with precision. (A rhythmic group of seven notes.)

Synonyms

Sevenfold: being seven times as great or as many; composed of seven parts.
- The sevenfold increase in production was remarkable. (Multiplied by seven.)
Heptadic: relating to a group of seven; from Greek "heptas" (seven).
- The heptadic structure of the story mirrors the seven days of creation. (Based on seven.)

Related Idioms

The seventh heaven: a state of extreme happiness (not directly related to "septimal" but involving the number seven).
- She was in the seventh heaven after winning the award. (Extremely joyful.)

Phrasal Verbs