achtbein

English

Etymology

Equivalent to German acht (“eight”) + Beine (“legs”).

Noun

achtbein (plural achtbeins)

1. (mathematics, physics) Synonym of octad
   • 1991 August 13, C D Froggatt, H B Nielsen, Origin Of Symmetries‎^[1], World Scientific, →ISBN, →OCLC, page 59:

     The extended siebenbein, or achtbein, v^a'_i, has unit determinant and is constructed from the siebenbein e^a_i and the 7 scalar fields ϕ_m as follows