first wife; son of first wife

strokes 14
strokes after radical 11
嫡传 嫡傳 di2 chuan2
handed down in a direct line from the founder

嫡亲 嫡親 di2 qin1
closely related by blood

嫡系 嫡系 di2 xi4
direct line of descent; under one's personal command; school or faction passing on faithfully one's doctrine

嫡子 嫡子 di2 zi3
son of first wife