Definition of silo noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈsaɪləʊ//
    ; NAmE NAmE//ˈsaɪloʊ//
    (pl. silos) On the farm
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  1. 1a tall tower on a farm used for storing grain, etc. See related entries: On the farm
  2. 2an underground place where nuclear weapons or dangerous substances are kept
  3. 3an underground place where silage is made and stored
  4. 4a system, process, department, etc. that operates separately or is thought of as separate from others Some departments have become silos and no longer communicate regularly with one another. In some countries, the economy and foreign policy are considered in separate silos.
  5. Word Originmid 19th cent.: from Spanish, via Latin from Greek siros ‘corn pit’.Extra examples In modern mills, grain is stored in silos which are often separate from the mill. It is believed there are missile silos located in the desert. The grass is cut for hay, then some of it is stored in silos.
See the Oxford Advanced American Dictionary entry: silo