maternal          
adjective uk/məˈtɜː.nəl/ us/məˈtɝː.nəl/
 母亲的;母亲般的
behaving or feeling in the way that a mother does towards her child, especially in a kind, loving way
  maternal instincts 母亲的天性 
 She is very maternal towards her employees. 她对员工十分慈和。 
 Compare: paternal
  母系的;母亲一方的
related to a mother's side of the family
  Her maternal grandmother (= mother's mother) is still alive. 她的外婆依然健在。