1. (n.) A wall separating two cavities; a partition; as, the nasal septum.
2. (n.) A partition that separates the cells of a fruit.
3. (n.) One of the radial calcareous plates of a coral.
4. (n.) One of the transverse partitions dividing the shell of a mollusk, or of a rhizopod, into several chambers.
5. (n.) One of the transverse partitions dividing the body cavity of an annelid.
Thesaurus Entries
barrier, brattice, buffer, buffer state, bulkhead, bumper, cloison, collision mat, cushion, diaphragm, dissepiment, dividing line, dividing wall, division, fender, interseptum, mat, midriff, midsection, pad, panel, paries, partition, party wall, property line, separation, septulum, shock pad, wall
