Knowledge center. Chickenpox (Chicken Pox) , also known as Varicella, is a very contagious infection caused by the varicella zoster virus. In several parts of the world it is just known as varicella. Patients develop a blister-like rash, which first appears on the face and trunk, and then spreads throughout the body.
Etymology[edit] Latin. See mode. modus â(plural modi) (law, obsolete) The arrangement of, or mode of expressing, the terms of a contract or conveyance.
Princeton's WordNet (0.00 / 0 votes) Rate this definition: mod (adj). a British teenager or young adult in the 1960s; noted for their clothes consciousness and opposition to the rockers. mod, modern, modernistic (adj). relating to a recently developed fashion or style.