| Webster's Online Dictionary |
| Part of Speech | Definition | |
| Expression | 1. Either of the two middle incisors of the upper jaw.[Websters]. | |
| Top | ||
| Expressions | Definition | ||
| Butter tooth | Either of the two middle incisors of the upper jaw. Source: Webster's Revised Unabridged Dictionary. | ||
Source: compiled by the editor from various references; see credits. | Top | ||