a. [f. TRANS- 3 + L. mūr-us wall: cf. mural.] That is beyond a wall or walls; spec. beyond the Roman Wall.

1

1851.  D. Wilson, Preh. Ann. (1863), II. III. ii. 67. Within the transmural province.

2

1911.  Edin. Rev., April, 488. With the fourth century this transmural area was lost.

3