生母

生母	shēng mǔ	natural mother / birth mother
生	shēng	to grow; to give birth; to produce; to be born / to arise; to occur / to light (a fire) / to live; to be alive / life / raw; uncooked; unprocessed / unfamiliar; strange / (bound form) student; person engaged in a field / (bound form) male role in traditional opera / (bound form) life; lifetime / (bound form) means of livelihood / (bound form) very; intensely (as in 生疼) / (bound form) in a forced manner (as in 生拉硬拽)
母	mǔ	mother / elderly female relative / origin / source / (of animals) female