Term: pupillary sphincter: a ring of smooth muscle surrounding the iris
Broader: sphincter: a ring of muscle that contracts to close an opening | Unrelated: great granddaughter: a daughter of your grandson or granddaughter
Broader: sphincter: a ring of muscle that contracts to close an opening | Unrelated: a cappella singing: singing without instrumental accompaniment
Broader: sphincter: a ring of muscle that contracts to close an opening | Unrelated: irruption: a sudden sharp increase in the relative numbers of a population
Broader: sphincter: a ring of muscle that contracts to close an opening | Unrelated: arsenical: a pesticide or drug containing arsenic
Broader: sphincter: a ring of muscle that contracts to close an opening | Unrelated: regius professor: holder of a British professorship created by a royal patron
Broader: sphincter: a ring of muscle that contracts to close an opening | Unrelated: cutch: tannin extract derived from any of several mangrove barks of Pacific areas
Broader: sphincter: a ring of muscle that contracts to close an opening | Unrelated: hen: adult female bird
Broader: sphincter: a ring of muscle that contracts to close an opening | Unrelated: replica: copy that is not the original; something that has been copied
Broader: sphincter: a ring of muscle that contracts to close an opening | Unrelated: standing committee: a permanent committee
Broader: sphincter: a ring of muscle that contracts to close an opening | Unrelated: pomolobus: genus to which the alewife is sometimes assigned