unidimensional cell growth bipolar cell growth The process in which a cell irreversibly increases in size along one axis through simultaneous polarized growth from opposite ends of a cell, resulting in morphogenesis of the cell. GO:0042815 biological_process Bipolar cell growth refers to a change in both cell size and cell shape. For shape changes where cell size is not affected, consider instead the term 'establishment or maintenance of bipolar cell polarity resulting in cell shape ; GO:0061246' and its children. bipolar growth bipolar cell elongation polar cell elongation