| postanal | <anatomy> Situated behind, or posterior to, the anus. Origin: Pref. Post- + anal. Source: Websters Dictionary (01 Mar 1998) |
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| postanal gut | An extension of the hindgut caudal to the point at which the anal opening is formed. Synonym: postcloacal gut, tailgut. (05 Mar 2000) |
| coccygeal dimple | A depression in the skin over the coccyx caused by the caudal retinaculum. Synonym: foveola coccygea, coccygeal dimple. (05 Mar 2000) |
| dimple | 1. A natural indentation, usually circular and of small area, in the chin, cheek, or sacral region. 2. A depression of similar appearance to a dimple, resulting from trauma or the contraction of scar tissue. 3. To cause dimples. (05 Mar 2000) |
| dimple sign | <clinical sign> In dermatofibroma, dimpling elicited when the lesion is squeezed. (05 Mar 2000) |