Being in the centre; central.
Pertaining to a nerve centre.
Being a member of the subclass Coscinodiscophyceae (corresponding to the Centrales.)
Within any limits, enclosure, or substance; inside; internal; inner.
Remote from the limits, frontier, or shore; inland.
The set of all interior points of a set.
The inside regions of a country, distanced from the borders or coasts.
The inside of a building, container, cavern, or other enclosed structure.