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birdsmouth

noun
/ˈbɜːdsmaʊθ/UK/ˈbɝdsmaʊθ/US

Etymology

From bird + -s- + mouth, from its appearance.

  1. inherited from mouthen
  2. derived from *ment-✻ — “to chew; jaw, mouth”
  3. inherited from *munþaz✻ — “mouth”
  4. inherited from *munþ✻
  5. inherited from mūþ
  6. inherited from mouth
  7. compounded as birdsmouth — “bird + -s- + mouth”

Definitions

  1. A notch cut into the underside of a rafter to ensure that it does not move when resting…

    A notch cut into the underside of a rafter to ensure that it does not move when resting on the wall plate running across the top of a wall; a similar notch in other timber components.

    • Support the veneer stack on a ¾-in.-thick board with a narrow V notch cut into one edge. This board is called a birds-mouth, and the V notch provides clearance for the blade while the work is supported for cutting.
    • After the wall and ceiling framing has been completed the erection of the roof takes place. Nail the four straight rafters selected as the first and last into position at the birdsmouth.

  2. To cut a birdsmouth into a rafter or similar timber component.

    • The end of the common rafter is birdsmouthed and nailed to the pole plate.

The neighborhood

Vish — recursive loop

No curated loop yet for birdsmouth. Loops are being traced one word at a time while the ingestion pipeline matures.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA