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noun(physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter
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nounan outlying farm building for storing grain or animal feed and housing farm animalstype of:
Definition that contains barn
- balanus balanoides barnacle that attaches to rocks especially in intertidal zones
- rock barnacle barnacle that attaches to rocks especially in intertidal zones
- tithe barn barn originally built to hold tithes paid in kind and common in England
- cirripedia barnacles
- acorn barnacle barnacle that attaches to rocks especially in intertidal zones
- subclass cirripedia barnacles