-oid, -oidal, -oidism, -odic
(Greek: a suffix; like, resembling, similar to, form)
2. Having a shape that is approximately spherical.
3. Any globular body, or one resembling a sphere.
4. An ellipsoid (a geometric surface or a solid figure shaped like an oval) generated by the rotation of an ellipse (a two-dimensional shape like a stretched circle with slightly longer flatter sides) around one of its axes or a straight line around which a geometric figure or a three-dimensional object is symmetrical.
2. A body that is shaped like, or resembles, a sphere, but is not perfectly round or spherical.
3. Roughly spherical, approximately round or ball shaped.
Some of the more tentaculoid animals are larger than most of the other invertebrates (without backbones); for example, the giant squid, "Architeuthis", may develop into 20 meters (slightly over 65 feet) in length, which is said to be by far the largest of the living invertebrate tentaculoid species.