- any of three divisions of 10° within a sign of the zodiac.
Origin of decan
1400–50; late Middle English < Late Latin decānus chief of ten; see dean1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for decan
The Decan, at least the western part of it, belonged to Sind.
Thus there are at present four English renegadoes in the Decan, besides many Portuguese.
A third of a sign, a "decan," was 10 degrees of longitude, corresponding to the "week" of ten days used in Egypt and in Greece.The Astronomy of the Bible
E. Walter Maunder
In this country, in the kingdom of Adel Khan, and in the Decan, those diamonds are found which are called of the old water.
They bring it made into powder in tubes of cane; and it is worth a great deal in Narsinga, Malabar, and Decan.A Description of the Coasts of East Africa and Malabar