| # | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| ||||||||||||||||||||||||||||||
| ||||||||||||||||||||||||||||||
| | AeonIn astronomical terms, 1,000 million years. It was proposed in 1957 for use in geology, but was never approved by the SI and is not used very much. Also known as Eon.   | | ||||
| Science & Engineering Encyclopaedia Version 2.3 © 2001-2008 Dirac Delta Consultants Limited | ||||||