a. [f. TRI- + L. aps-is, apsid-em APSE + -AL.] Having three apses. Also Triapsidal.

1

1849.  Freeman, Archit., I. viii. 191. A vestige of the triapsal termination of the basilicas. Ibid. (1875), Venice (1881), 131. The arrangement of the triapsidal basilica.

2

1883.  Mag. of Art, June, 338/2. It is triapsal, the transepts as well as the choir ending in a semi-circle.

3

1898.  J. T. Fowler, Durham Cathedr., 22. The original triapsidal east end.

4