Definition of courier: An individual responsible for the exchange of items between two or more parties. Couriers are usually employed by a company that charges a flat rate to the party using the courier service. Federal Express, UPS, DHL, and the United States Post Office all employ couriers to deliver mail and packages.
At least 3 bacterial morphotypes, as well as fungal mycelia, thelastomatid nematodes, and ingested material are found in the hindgut. At annual molt, the lumen bacteria virtually disappear; presumably they are replaced from anterior gut regions, ingested exuvium, and ingested soil.
Noun. 1. streptococcus-spherical Gram-positive bacteria occurring in pairs or chains; cause e.g. scarlet fever and tonsillitis. strep, streptococci. eubacteria, eubacterium, true bacteria-a large group of bacteria having rigid cell walls; motile types have flagella.genus Streptococcus-a genus of bacteria.oun. 1. streptococcus-spherical Gram-positive bacteria occurring in pairs or chains; cause e.g. scarlet fever and tonsillitis. strep, streptococci. eubacteria, eubacterium, true bacteria-a large group of bacteria having rigid cell walls; motile types have flagella.