acentric,a.|əˈsɛntrɪk,eɪ-|1.Geom.[f.Gr.ἄκεντρ-ος without centre + -ic.]Destitute of a centre.1852GregorySolidGeom.(ed.2) 77Acentric Surfaces: the general equation to these may be put in the form..2.Biol.[f.a- 14 + -centric.]Of a chromosome: having no centromere. Also as n.1937C. D. Darlington inNature 30 Oct. 760/2When the bivalent..attempts to divide, the ‘dicentric’ chromatid forms a bridge between the daughter nuclei, and the ‘acentric’ one incapable of movement, is lost.1939Sturtevant & BeadleIntrod.Genetics (1940) viii. 128Acentric and dicentric chromosomes or chromosome fragments are not usually transmitted from one cell generation to another with any regularity.1949Darlington & MatherElem.Genetics vi. 131Any single crossing-over within this loop gives two new chromatids, one with two centromeres attached to it, a dicentric, the other with none, an acentric.