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.
is a Modal: cf. [...]. ( 1 music) of, relating to, or composed in the musical modi by which an octave is divided, associated with emotional moods in Ancient â and in medieval ecclesiastical music. ( 2 logic) of, or relating to the modality between propositions. ( 3 statistics) relating to the statistical mode.