Sentence:  A Canadian believes that he has solved the diagnostic problem in human <WSD>intersex</WSD>. All human cells, says Dr. Murray L. Barr of the University of Western Ontario, contain something called sex chromatin. 
Meaning of the word marked with <WSD> tags:  Any of a variety of conditions (in a dioecious species) whereby an individual has male and female sex characteristics; the state of having the physical features of both sexes; intersexuality.