Sentence:  One growth center in a short bone - distal phalanx of the second finger - was chosen as an example for discussion here , primarily because epiphyseal diaphyseal fusion , the maturity indicator for Completion in long and short bones , occurs in this center for girls near the <WSD>menarche</WSD> and for boys near their comparable pubescent stage . 
Meaning of the word marked with <WSD> tags:  the first occurrence of menstruation in a woman