corporale,
n. [LL.
corporale: cf. F.
corporal. See
Corporal,
a.].
A fine linen cloth, on which the sacred elements are consecrated in the eucharist, or with which they are covered; a communion cloth. [1913 Webster]
Corporal oath, a solemn oath; -- so called from the fact that it was the ancient usage for the party taking it to touch the corporal, or cloth that covered the consecrated elements.