| Webster's Online Dictionary |
| Part of Speech | Definition | |
| Expression | 1. The auditory duct, or external passage of the ear.[Websters]. | |
| Top | ||
| Expressions | Definition | ||
| Acoustic duct | The auditory duct, or external passage of the ear. Source: Webster's Revised Unabridged Dictionary. | ||
Source: compiled by the editor from various references; see credits. | Top | ||