Alternative letter-case form of Brett (“Brettanomyces”)
"The winemaker decided to bottle the vintage early after detecting Brettanomyces, which had imparted a distinct barnyard character to the wine."
A britchka; a kind of horse-drawn carriage.
Brettanomyces, a yeast genus that is used in brewing some beers, and can also affect the taste of wine.
In plain English: Brett is short for Brettanomyces, which are wild yeast that give some wines and beers funky flavors but can also make them taste bad if too much grows.
"The brett from the band played guitar at the small concert last night."
Usage: This term refers to an obsolete type of light, two-wheeled cart and is rarely used in modern English. You will mostly encounter it only when reading historical texts about 18th-century Russia or Ukraine.
A surname, from nicknames meaning "Breton, an inhabitant of Brittany".
"Many people do not realize that Brett is originally a surname derived from the nickname for a Breton."
Brett is a shortened form of Brettanomyces, which is the scientific name for a specific type of wild yeast used in winemaking and brewing. The term entered English usage as an informal abbreviation to refer to this particular strain when discussing beer styles or wine faults.