blocking antibody n.
An antibody that combines with an antigen without a reaction but that blocks another antibody from later combining with that antigen.
An immunoglobulin that combines specifically with an atopic allergen but does not elicit an allergic reaction.
|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
|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.|