| octonary scale | มาตราฐานแปด [คณิตศาสตร์๑๙ ก.ค. ๒๕๔๗] |
| eight | (n) the cardinal number that is the sum of seven and one, Syn. 8, octad, eighter, octonary, VIII, octet, eighter from Decatur, ogdoad |
| Octonary | a. [ L. octonarius, fr. octoni eight each, fr. octo eight. ] Of or pertaining to the number eight. Dr. H. More. [ 1913 Webster ] |