Meanings
plural umbellasters
- biologyA group of flowers arising from one point.
Origin
From umbel + -aster or from New Latin umbella + -aster.
Full word history & related roots →Cite this entry
umbellaster. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/umbellaster
“umbellaster.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/umbellaster. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “umbellaster,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/umbellaster.
Source: umbellaster on Wiktionary, CC BY-SA 4.0.