[self-pol-uh-ney-shuh n, self-] /ˈsɛlfˌpɒl əˈneɪ ʃən, ˌsɛlf-/
the transfer of pollen from the anther to the stigma of the same flower, another flower on the same plant, or the flower of a plant of the same clone.
the transfer of pollen from the anthers to the stigma of the same flower or of another flower on the same plant Compare cross-pollination
The transfer of pollen from a male reproductive structure (an anther or male cone) to a female reproductive structure (a stigma or female cone) of the same plant or of the same flower. Self-pollination tends to decrease the genetic diversity (increase the number of homozygous individuals) in a population, and is much less common than cross-fertilization. Many species of plants have evolved mechanisms to promote cross-pollination and avoid self-pollination, though certain plants, such as the pea, regularly self-pollinate. Compare cross-pollination.
[self-pawr-trit, -treyt, -pohr-, self-] /ˌsɛlfˈpɔr trɪt, -treɪt, -ˈpoʊr-, ˈsɛlf-/ noun 1. a portrait of oneself done by oneself. self-portrait noun 1. a portrait one draws or paints of oneself
[self-puh-zest, self-] /ˈsɛlf pəˈzɛst, ˌsɛlf-/ adjective 1. having or showing control of one’s feelings, behavior, etc.; composed; poised. self-possessed adjective 1. having control of one’s emotions, etc
[self-puh-zesh-uh n, self-] /ˈsɛlf pəˈzɛʃ ən, ˌsɛlf-/ noun 1. the quality of being self-possessed; control of one’s feelings, behavior, etc.; composure; poise.
adjective 1. (of a machine, vehicle, etc.) having a specified fuel or prime mover: a gasoline-powered engine; an engine-powered pump.