hemolysin unit n.
The smallest quantity of inactivated immune serum that will sensitize a suspension of red blood cells so that complement will cause complete hemolysis.
|a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
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