self

1. (botany) A seedling produced by self-pollination (plural selfs).

2. (botany) A flower having its colour uniform as opposed to variegated.

3. (molecular biology, 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).Examples: "Similarity profiles between helper T cell epitopes (of self or microbial antigens and allergens) and human or microbial SWISSPROT collections were produced. For each antigen, both collections yielded largely overlapping profiles, demonstrating that self-nonself discrimination does not rely on qualitative features that distinguish human from microbial peptides. [...] Epitopes (on self and nonself antigens) can cross-stimulate T cells at increasing potency as their similarity with nonself augments."; "In plants, the ability to recognize self from nonself plays an important role in fertilization, because self-fertilization will result in less diverse offspring than fertilization with pollen from another individual."

1. (botany) To fertilize by the same individual; to self-fertilize or self-pollinate.

2. (botany) To fertilize by the same strain; to inbreed.

1. (obsolete) Same, identical.Examples: "I owe you much, and, like a wilful youth / That which I owe is lost; but if you please / To shoot another arrow that self way / Which you did shoot the first, I do not doubt, / As I will watch the aim, or to find both, / Or bring your latter hazard back again, / And thankfully rest debtor for the first."; "I am made of that self mettle as my sister."; "But were it granted, yet the heighth of these Mountains is far under the supposed place of Paradise; and on these self Hills the Air is so thin […]"obsolete

2. (obsolete) Belonging to oneself; own.obsolete

3. (molecular biology, immunology) Of or relating to 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).Examples: "Similarity profiles between helper T cell epitopes (of self or microbial antigens and allergens) and human or microbial SWISSPROT collections were produced. For each antigen, both collections yielded largely overlapping profiles, demonstrating that self-nonself discrimination does not rely on qualitative features that distinguish human from microbial peptides. However, epitopes whose probability of mimicry with self or nonself prevails are, respectively, tolerated or immunodominant and coexist within the same (auto-)antigen regardless of its self/nonself nature. Epitopes (on self and nonself antigens) can cross-stimulate T cells at increasing potency as their similarity with nonself augments."Antonyms: nonself