major axis

1. 1.

   the longest axis of an ellipse or ellipsoid; passes through the two foci

   Broaderaxis

   Partssemimajor axis

Questions about major axis

What does major axis mean?

major axis means "the longest axis of an ellipse or ellipsoid; passes through the two foci".

Is major axis a common word?

major axis is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.