1the unit of reproduction of a flowering plant, capable of developing into another such plant:cut open the peppers and remove the seeds [as modifier]:seed capsules
[mass noun] a quantity of seeds:grass seedyou can grow artichokes from seed
the cause or latent beginning of a feeling, process, or condition:the conversation sowed a tiny seed of doubt in his mind
2 [mass noun] a man’s semen.
archaic (chiefly in biblical use) a person’s offspring or descendants:as he promised to our forefathers, Abraham and his seed
3any of a number of stronger competitors in a sports tournament who have been assigned a specified position in an ordered list with the aim of ensuring that they do not play each other in the early rounds:he knocked the top seed out of the championships
4 (also seed crystal) a small crystal introduced into a liquid to act as a nucleus for crystallization.
5a small container for radioactive material placed in body tissue during radiotherapy.
1 [with object] sow (land) with seeds:the shoreline is seeded with a special grass
sow (seed):after seeding forage into the duff, they now have grassland mixed with mature forest
cause (something) to begin to develop or grow:his interest in public service was seeded when he was a child
place a crystal or crystalline substance in (something) in order to cause crystallization or condensation (especially in a cloud to produce rain):potential hail clouds are observed by radar, then seeded by lead iodide fired into the cloud’s centre
2 [no object] (of a plant) produce or drop seeds:mulches encourage many plants to seed freely
(seed itself) (of a plant) reproduce itself by means of its own seeds:feverfew will seed itself readily
3 [with object] remove the seeds from (vegetables or fruit):stem and seed the chillies
4 [with object] give (a competitor) the status of seed in a tournament: [with object and complement]:he was seeded second for the competition
go (or run) to seed
(of a plant) cease flowering as the seeds develop:the latest varieties to be introduced are inclined to bolt and run to seed
deteriorate, especially through neglect:Mark knows he has allowed himself to go to seed