What does "septum" mean?

Septum: (Bot.) A partition that separates the cells of a fruit.

Additional senses

  1. 2.(Zoöl.) (a) One of the radial calcareous plates of a coral. (b) One of the transverse partitions dividing the shell of a mollusk, or of a rhizopod, into several chambers. See Illust. under Nautilus. (c) One of the transverse partitions dividing the body cavity of an annelid.

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