vi to come to one point; to meet in, or converge toward, a common center; to have a common center.
2. concentre ·vt to draw or direct to a common center; to bring together at a focus or point, as two or more lines; to concentrate.
vi to come to one point; to meet in, or converge toward, a common center; to have a common center.
2. concentre ·vt to draw or direct to a common center; to bring together at a focus or point, as two or more lines; to concentrate.
Webster English vocab. Английский словарь Webster. 2012