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Spheroid vs Semispheroidal - What's the difference?

spheroid | semispheroidal |

As adjectives the difference between spheroid and semispheroidal

is that spheroid is of a shape similar to a squashed sphere while semispheroidal is formed like a half spheroid.

As a noun spheroid

is a solid of revolution generated by rotating an ellipse about its major (prolate), or minor (oblate) axis.

spheroid

English

(wikipedia spheroid)

Alternative forms

* (archaic)

Noun

(en noun)
  • A solid of revolution generated by rotating an ellipse about its major (prolate), or minor (oblate) axis.
    • UFOs are reported as being either oblate (saucer-shaped) or prolate (cigar-shaped) spheroids .

    Adjective

    (en adjective)
  • Of a shape similar to a squashed sphere.

    • semispheroidal

    English

    Adjective

    (-)
  • Formed like a half spheroid.
    • (Webster 1913)