—n. (pl. -os)
1 a pit or airtight structure in which green crops are pressed and kept for fodder, undergoing fermentation.
2 a pit or tower for the storage of grain, cement, etc.
3 an underground chamber in which a guided missile is kept ready for firing.
—v.tr. (-oes, -oed) make silage of.
Etymology: Sp. f. L sirus f. Gk siros corn-pit
Useful english dictionary. 2012.