deciday

The English word “deciday” has 1 meaning listed here.

noun

One tenth of one day, i.e. 2.4 hours, proposed for use in metric systems of time.

From deci- + day.

Keep exploring: in the interactive dictionary every word of a definition is a link. Open “deciday” there

The English dictionary on Glottosphere has 650,529 entries with a page. Browse the English dictionary.

Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.