Antigen-presenting cell: A cell that can present antigen in a form that T cells can recognize it. The cells that can present antigen include B cells and cells of the monocyte lineage (including macrophages).
Generation X Ages | How Big Is Generation X? The age range for Generation X as of 2016 is 35 to 55 (my broadest definition). In 2011, the first Gen-Xer turned 50 years old and the youngest turned 30. We are currently the âsandwich generationâ in America. We are caring for aging parents and raising more than 50 percent of the nationâs children under 18.
Generation X, commonly abbreviated to Gen X, is the generation born after the Western PostâWorld War II baby boom. Demographers and commentators use birth dates ranging from the early 1960s to the early 1980s.he name was popularized by Canadian author Douglas Coupland 's 1991 novel Generation X: Tales for an Accelerated Culture, concerning young adults during the late 1980s and their lifestyles.