fresh blood; lifeblood
Refers to blood that is still fresh, often with a vivid or visceral nuance. Can also be used metaphorically for something essential or vital.
傷口から生血が流れ出た。
Fresh blood flowed from the wound.
その経験は彼の創
That experience became the lifeblood of his creative work.
Compound of 生 (なま, 'raw, fresh') and 血 (ち, 'blood'). The reading なまち is a straightforward combination.