Sentence:  In the experimental animal and in <WSD>man</WSD> gross deficiency in dietary iodine causes thyroid hyperplasia , hypertrophy and increased thyroid activity ( Money , Rall and Rawson , 1952 ; Stanbury , Brownell , Riggs , Perinetti , Itoiz , and Del Castillo , 1954 ) . 
Meaning of the word marked with <WSD> tags:  any living or extinct member of the family Hominidae characterized by superior intelligence, articulate speech, and erect carriage