a. [f. prec. + -AL.] Of or pertaining to conjugation.
1. Phys. Belonging to or situated at the junction of two bones. (Cf. CONJUGATE a. 4 b.)
1854. Owen, in Circ. Sc. (c. 1865), II. 59/2. The optic foramina are conjugational, between the anterior border of the lateral plate of the parietal, and the posterior border of the corresponding plate of the frontal.
2. Belonging to verb-conjugation.
1841. H. H. Wilson, Sanskr. Gram. (1847), 109. The conjugational inflexion of Sanskrit verbs.
1875. Whitney, Life Lang., x. 200. Conjugational and declensional inflections.
Hence Conjugationally adv.
Mod. Verbs cognate, but conjugationally distinct.