interior point
nounUK /ɪnˈtɪəriə pɔɪnt/
US /ɪnˈtɪriər pɔɪnt/
A point that is inside a shape, not on its edge.
The dot in the middle of the circle is an interior point.
OTHER MEANINGS
2. In geometry, a point surrounded by a small circle that stays completely within the figure.
Every interior point of the disk has a tiny circle around it that is still inside the disk.
3. In optimization, a feasible solution that satisfies all constraints strictly, not on the boundary.
The algorithm searches for an interior point of the feasible region.
4. A point lying within the interior of an angle or polygon.
Point P is an interior point of triangle ABC.