Seed  —n. 1 a part of a plant capable of developing into another such plant. B seeds collectively, esp. For sowing. 2 semen. 3 prime cause, beginning. 4 offspring, descendants. 5  (in tennis etc.) Seeded player. —v. 1 a place seeds in. B sprinkle (as) with seed. 2  sow seeds. 3 produce or drop seed. 4 remove seeds from (fruit etc.). 5  place a crystal etc. In (a cloud) to produce rain. 6 sport a so position (a strong competitor in a knockout competition) that he or she will not meet other strong competitors in early rounds. B arrange (the order of play) in this way.  go (or run) to seed 1 cease flowering as seed develops. 2 become degenerate, unkempt, etc.  seedless adj. [old english]