n 1  :  an area or division of an activity <a doctor eminent in her >   2  :  a complex of forces that serve as causative agents in human behavior  3 a  :  a region of embryonic tissue potentially capable of a particular type of differentiation <a morphogenetic >   b  :  a region or space in which a given effect (as magnetism) exists  4 a  :  an area that is perceived or under observation : esp  :  the area visible through the lens of an optical instrument - see VISUAL FIELD   b  :  the site of a surgical operation .
 
 
 
Similar sounding terms:  fall·out  Fe·li·dae  fel·late  felt 
 
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