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seedstock

American  
[seed-stok] / ˈsidˌstɒk /
Or seed stock

noun

  1. seed, tubers, or roots selected and kept for planting.

  2. animals, especially pedigreed livestock, maintained for breeding purposes.

  3. the animals needed to replenish a population, as after hunting or fishing.


Etymology

Origin of seedstock

First recorded in 1925–30; seed + stock