tissue plasminogen activator-a thrombolytic agent (trade name Activase) that causes fibrinolysis at the site of a blood clot; used in treating acute myocardial infarction.issue plasminogen activator-a thrombolytic agent (trade name Activase) that causes fibrinolysis at the site of a blood clot; used in treating acute myocardial infarction.
A stack of colored notecards. noun. The definition of a small firm sheet of paper used for writing a short message or for keeping small pieces of information. The lined cards used for presentation notes are an example of notecard. a small card, enclosed in an envelope, having a photograph or illustration printed on one side and the other side used for sending short messages.
c.1400, playing card, from Middle French carte (14c.), from Latin charta leaf of paper, tablet, from Greek khartes layer of papyrus, probably from Egyptian. Form influenced after 14c. by Italian carta (see chart (n.)). Sense of playing cards also is oldest in French. Sense in English extended by 1590s to similar small, flat, stiff bits of paper. Meaning printed ornamental greetings for special occasions is from 1869. Application to clever or original persons (1836, originally with an adjective, e.g. smart card) is from the playing-card sense, via expressions such as sure card an expedient certain to attain an object (c.1560). Card table is from 1713. Card-sharper is 1859.