| Domain | Definition | ||
| Geology | Row of tube feet of an echinoderm. (references) | ||
Source: compiled by the editor from various references; see credits. | Top | ||
| Webster's Online Dictionary |
Date "AMBULACRA" was first used in popular English literature: sometime before 1914. (references) |
| Domain | Definition | ||
| Geology | Row of tube feet of an echinoderm. (references) | ||
Source: compiled by the editor from various references; see credits. | Top | ||
