[ad. late L. arcuātiōn-em, n. of action f. arcuā-re: see ARCUATE a. and -TION. Cf. F. arcuation.]
1. A curving into the shape of an arch; incurvation.
1696. Phillips, Arcuation, the bending of the bones.
1751. Chambers, Cycl., Arcuation is used, by some writers in surgery, for an incurvation of the bones.
1880. in Syd. Soc. Lex.
2. Hort. A method of raising trees, by bending down twigs and pegging them into the ground, so that they take new root independent of the parent stock. ? Obs.
1727–51. in Chambers, Cycl.
3. The use of the arch in building; arched work.
1856. E. Denison, Ch. Build., ii. 66. The principles of arcuation.
1879. G. Scott, Lect. Archit., I. 19. Arcuation plastered over to look like trabeation.
