a. Obs. rare. [f. thor-us (cf. ‘Thoral, thorāle, culcitra’ in Du Cange), med. spelling of L. torus couch, marriage + -AL.] Of or pertaining to the marriage-bed.

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1696.  Phillips (ed. 5), Thoral Line, otherwise call’d in Palmistry the Mensal Line, or the Line of Venus.

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1726.  Ayliffe, Parergon, 48. The second Punishment … is a Thoral Separation or a Dissolution of Matrimony.

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