lacto-vegetarian       
noun [ C ] uk/ˌlæk.təʊ.vedʒ.ɪˈteə.ri.ən/ us/ˌlæk.toʊ.vedʒ.əˈter.i.ən/
 乳类素食者
a person who does not eat meat, fish, or eggs but does drink milk and eat some foods made from milk
  As a lacto-vegetarian he eats cheese, as long as it does not contain animal products such as rennet. 作为一个乳类素食者,他吃奶酪,只要其中没有动物制品如凝乳酶等就可以。 
 Compare: ovo-vegetarian
 - More examples
 - Lacto-vegetarians may opt to use foods fortified with vitamin B12.
 - The lacto-vegetarian excludes meats, fish and eggs from the diet but dairy products are consumed.
 - She has been a lifelong lacto-vegetarian.