semimean

English

Etymology

From semi- +‎ mean.

Adjective

semimean (not comparable)

1. Somewhat or partially mean. (Can we add an example for this sense?)
2. (geometry) Pertaining to half the length of the middle axis on an ellipse (halfway between the major and minor axes).
   • 1970, Akademii͡a︡ nauk SSSR, Doklady of the Academy of Sciences of the U.S.S.R:

     The planes in which lie the semimajor and semimean axes of both the pebbles and quartz-feldspar aggregates coincide with those of the crystalline schistosity (Sj, which follows the bedding (S0).

Antonyms

• (partially mean) seminice

Noun

semimean (plural semimeans)

1. (statistics) The result obtained by taking either the largest or smallest half of the values and calculating the mean.
   • 1983, The Engineering Economist - Volume 29, page 12:

     Moreover, semimeans unify many of the more common measures.

   • 2010, Gerd Infanger, Stochastic Programming:

     The third captures the mean squared wealth and the lower semimean squared wealth.