ancestorn. 祖先、祖宗學術名詞原始粒子：電機工程、電力工程祖系體：電機工程、電力工程祖先：核能、獸醫學源始：資訊上代：資訊原始現象：電力工程英文釋義someone from whom you are descended (but usually more remote than a grandparent)