dimer

Etymology

di- + -mer

noun

1. (chemistry) A molecule consisting of two identical halves, formed by joining two identical molecules, sometimes with a single atom acting as a bridge.
   Non-polymerized lamins are dimers and they can polymerize to structures such as head to tail or by unparallel dimers which aggregate in tetramers and polymerize to thick fibers. March 25, 2015, Anna Skoczyńska et al., “New look at the role of progerin in skin aging”, in Przegla̜d Menopauzalny = Menopause Review, volume 14, →DOI