| Webster's Online Dictionary |
| Part of Speech | Definition | |
| Noun | 1. A law stating that the orbit of each planet is an ellipse with the sun at one focus of the ellipse.[Wordnet]. | |
Source: WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. | Top | |
| Expressions | Definition | ||
| Kepler's first law | A law stating that the orbit of each planet is an ellipse with the sun at one focus of the ellipse. Source: Wordnet 3.0 Copyright © 2006 by Princeton University. All rights reserved. | ||
Source: compiled by the editor from various references; see credits. | Top | ||