elliptical
Word family
- ellipsenounC1
- ellipsisnounC2
- ellipticallyadverbC2
Synonym discussion
Sense: adjective/1
'Elliptical' is the more formal choice for a rounded shape that is longer in one direction than the other, and it often appears in technical, scientific, or careful visual description. 'Oval' is the everyday word most people use for mirrors, tables, or faces with this shape. 'Egg-shaped' is close, but it often suggests that one end is a little narrower, so it is less even than 'elliptical'. 'Oblong' usually points to a longer shape with flatter sides, so it is not as smoothly curved. A designer may describe an elliptical skylight in a plan, while a shopper is more likely to ask for an oval mirror.
Etymology
Elliptical was formed from 'ellipse' with the adjective ending '-ical'. The family goes back through Latin and French to Greek elleipsis, a word connected with leaving something out or falling short. That history helps explain why English uses 'elliptical' both for the stretched shape of an ellipse and for language that leaves some words unsaid.
First known use
1656
1656, in the meaning defined at sense 1 Noun