Meanings
noundekad (plural dekads)
plural dekads
- climatologyTen days, especially of rainfall. Generally identified as dekad 1: 1ˢᵗ-10ᵗʰ, dekad 2: 11ᵗʰ-20ᵗʰ, and dekad 3: 21ˢᵗ-last day of each month.
Figure 1 displays the current position of the ITF relative to the long-term average position during the 2nd dekad of June and its previous position during the 1st dekad of June.
2022 July 1 (last accessed), “Africa InterTropical Front (ITF)”, in Climate Prediction Center, NOAA, archived from the original on 01 Jul 2022
Origin
- Ancient Greekδεκάς“group of ten”
- Englishdekad
Borrowed from Ancient Greek δεκάς (dekás, “group of ten”). By surface analysis, deka- + -ad. Doublet of decad and decade.
More words from Ancient Greek
Full word history & related roots →Cite this entry
APA
dekad. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/dekad
MLA
“dekad.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/dekad. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “dekad,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/dekad.
Source: dekad on Wiktionary, CC BY-SA 4.0.