septenary noun & adjective. ['sɛptɪn(ǝ)ri, -'ti:n(ǝ)ri] LME.
[formed as SEPTENARIUS: see -ARY¹.]
A. noun.
1. A group or set of seven. LME.

2. A period of seven years. L16.

3. The number seven. M-L17.

4. Music. The seven notes of the diatonic scale. M17.

5. Prosody. = SEPTENARIUS. L19.
b. adjective.
1. Of or pertaining to the number seven; forming a group of seven. LME.
septenary number the number seven.
b. Pertaining to or designating a sevenfold division of a period of time. M17.

[TahlilGaran] English Dictionary ▲