• synonyms

beam fill

or beam filling

noun Building Trades.
  1. material, as concrete, for filling spaces between beams or joists in or on top of a masonry wall.
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Origin of beam fill

1350–1400; Middle English (in AL texts) bemfyllyng
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018