Definition of semiminor axis in English:

semiminor axis

Syllabification: sem·i·mi·nor ax·is
Pronunciation: /ˈsemēˈmīnər, ˈsemˌī-


  • Either of the halves of the minor axis of an ellipse.
    More example sentences
    • We assume height, just as spore width measured elsewhere using EM and optical microscopy, to be identical to the semiminor axis and length to be identical to the semimajor axis.
    • The dimensions of the model-deformed MTs, with a semiminor axis of 7.2 nm and a semimajor axis of 13.8 nm to the center of the MT wall, are those of the least deformed MTs in the rectangular bundle phase.

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a small amount; a little