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Webster 1913 Edition

Noun.

(Arch.)

A projecting molding round a panel. Same as

Gwilt.

bolection ‎(plural bolections)

(architecture) A moulding that covers a joint, especially between joints between surfaces on different levels.
- 1996, David Foster Wallace, Infinite Jest, Abacus 2013, p. 62:
  your disk of white light trembling like the moon on water as it plays over the identical bureaus, the recessions of closet and room's front door, door's frame's bolections [...].