it looked like a sphere but on closer examination I saw it was really a spheroid.
Examples of spheroid
spheroid
This is due to the Earth being an oblate spheroid rather than a perfect sphere.
From the en.wikipedia.org
Due to its rotation, the Earth is an oblate spheroid instead of being a true sphere.
From the en.wikipedia.org
Whether Brohm can hurl the spheroid with success or not remains to be seen.
From the jsonline.com
The Bayes factor was computed 32 times, separately for every spheroid.
From the nature.com
Another is that the Earth is slightly deformed into an oblate spheroid.
From the en.wikipedia.org
An oblate is the try round flat thing Catholics eat in the Mass, not an oblate spheroid.
From the en.wikipedia.org
The shape of an egg resembles a prolate spheroid with one end larger than the other end.
From the en.wikipedia.org
Grapes are typically an ellipsoid shape resembling a prolate spheroid.
From the en.wikipedia.org
Effects of NVP-LDE-225 on apoptosis, spheroid formation and cell viability in spheroids.
From the nature.com
More examples
A shape that is generated by rotating an ellipse around one of its axes; "it looked like a sphere but on closer examination I saw it was really a spheroid"
(spheroidal) ellipsoid: having the nature or shape of an ellipsoid
A solid of revolution generated by rotating an ellipse about its major (prolate), or minor (oblate) axis
(Spheroidal) weathering- Any weathering process that tends to produce a spherical shape form an initially blocky shape
Mathematical figure closely approaching the geoid in form and size and used as a surface of reference for geodetic surveys. ...
A type of tool that is imperfectly round. Spheroids may not be a separate tool, but rather a hammer that has been worn down from use.
A solid that resembles a sphere in geometry. One of the terms used to describe the shape of the earth.