coagulase. a bacterial enzyme that reacts with a cofactor found in blood plasma to catalyze the formation of fibrin from fibrinogen. It is produced by most of the virulent strains of staphylococci, and by Yersinia pestis.oagulase. a bacterial enzyme that reacts with a cofactor found in blood plasma to catalyze the formation of fibrin from fibrinogen. It is produced by most of the virulent strains of staphylococci, and by Yersinia pestis.
Definition of 'envoy'. Word Frequency. envoy (envÉÉª ) Word forms: plural envoys. 1. countable noun. An envoy is someone who is sent as a representative from one government or political group to another. 2. countable noun. An envoy is a diplomat in an embassy who is immediately below the ambassador in rank.
ambassador. 1. short for ambassador extraordinary and plenipotentiary; a diplomatic minister of the highest rank, accredited as permanent representative to another country or sovereign. 2. ambassador extraordinary a diplomatic minister of the highest rank sent on a special mission.mbassador. see diplomatic service diplomatic service,organized body of agents maintained by governments to communicate with one another. Origins Until the 15th cent. any formal communication or negotiation among nations was conducted either by means of ambassadors specially appointed for a.....