n, pl  -gies  1  :  a branch of physiology concerned with the function and activities of tissues  2  :  tissue organization (as of a bodily part) esp. as it relates to function <the of the thyroid gland>  his*to*phys*i*o*log*i*cal also  his*to*phys*i*o*log*ic  adj 
 
 
 
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