helenium
noun
he·le·ni·um
hə̇ˈlēnēəm
1
capitalized : a genus of American herbs (family Compositae) with heads of yellow-rayed flowers and truncate-style branches see sneezeweed sense 1
2
plural -s : any plant of the genus Helenium
Word History
Etymology
New Latin, from Latin, a plant, elecampane, from Greek helenion, perhaps from helenē wicker basket; akin to Greek helix (adjective) twisted, (noun) spiral, anything of spiral shape, helissein to turn, wind, eilein to wind, roll, eilyein to enfold, enwrap
- spectroheliogram
- spectroheliograms
- spectroheliograph
- spectroheliographies
- spectroheliographs
- spectroheliography
- spectroheliokinematograph
- spectrohelioscope
- spectrohelioscopes
- spectrology
- spectrometer
- spectrometers
- spectrometric
- spectrometries
- spectrometry
- spectromicroscope
- spectromicroscopical
- spectrophotoelectric
- spectrophotometer
- spectrophotometers
- spectrophotometric
- spectrophotometrical
- spectrophotometrically
- spectrophotometries
- spectrophotometry