Sentence:  In <WSD>all</WSD> cases the activity against * * f cells was spread over a wider area than that with * * f cells , regardless of the type of test ( saline , albumin , indirect Coombs ) used for comparison . 
Meaning of the word marked with <WSD> tags:  quantifier; used with either mass or count nouns to indicate the whole number or amount of or every one of a class