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.
An ambassador is a diplomatic representative that attends international meetings, banquets and parties and acts as a figurehead for their country of origin. Ambassadors are also known as diplomats, a more general term describing those that work in a foreign country while retaining citizenship in their home country. The foreign country, known to ambassadors as the host nation, serves as their base of operation for promoting international relations while concentrating on specific areas of government, including trade, military involvement and cultural relationships.