1. The surface of many bacterial species is covered by polysaccharides. These can be in the form of capsules, glycoproteins or glycolipids. In Gram-negative bacteria, the lipopolysaccharide (LPS) also referred to as endotoxin, covers ca. 40% of the bacterial surface.
A consul is a diplomat appointed to live in a foreign country, to protect both her country's interests and citizens living abroad. If you're an American living in Poland, take your troubles to the American consul. In ancient Rome, there were two consuls elected every year to be in charge of the whole city. Like many words, this one developed new meanings and spellings.
(formerly) a royal or official messenger, especially one representing a monarch in an ambassadorial capacity during wartime. 2. a person or thing that precedes or comes before; forerunner; harbinger: the returning swallows, those heralds of spring. 3. a person or thing that proclaims or announces: A good newspaper should be a herald of truth.