Sentence:  Dr. Wilson C. Grant , of the Veterans ' Administration Hospital , Coral Gables , Florida , and the University of Miami School of Medicine , set out to discover if <WSD>avocados</WSD> , because of their high content of unsaturated fatty acids , would reduce the cholesterol of the blood in selected patients . 
Meaning of the word marked with <WSD> tags:  a pear-shaped tropical fruit with green or blackish skin and rich yellowish pulp enclosing a single large seed