[kwod-ruh-juh-nair-ee-uh
n] 
| 1. | 40 years of age. |
| 2. | between the ages of 40 and 50. |
| 3. | a person who is 40 years old or whose age falls between 40 and 50. |
| Main Entry: | quadragenarian |
| Part of Speech: | n, adj |
| Definition: | a person between the age of 40-49 |
| Example: | She will only be a quadragenarian until August. |