(botany) A seedling produced by self-pollination (plural selfs).
(immunology) Any molecule, cell, or tissue of an organism's own (belonging to the self), as opposed to a foreign (nonself) molecule, cell, or tissue (for example, infective, allogenic, or xenogenic).
“The time-honored way was to use self as though it were a little man-inside-the-man who ordered all activities so that they pretty well suited his imperial selfship.”
selfishness
the quality of being selfish; the condition of putting one's own interests before those of others.