(a.) Causing dilation or relaxation of the blood vessels; as, the vasodilator nerves, stimulation of which causes dilation of the blood vessels to which they go. These nerves are also called vaso-inhibitory, and vasohypotonic nerves, since their stimulation causes relaxation and rest.

accession accessory accompaniment addenda addendum additament addition additive additory additum adjunct alterative analeptic ancillary annex annexation appanage appendage appendant appurtenance appurtenant assistant assisting attachment augment augmentation auxiliary carminative coda collateral complement concomitant continuation contributory corollary corrective counterirritant curative emmenagogue expectorant extension extrapolation fixture fostering healing helping hormone iatric increase increment instrumental maturative medicative medicinal ministerial ministering ministrant nurtural nutricial offshoot pendant reinforcement remedial restorative sanative sanatory serving side effect side issue subservient subsidiary supplement synergistic tailpiece therapeutic theriac undergirding vasodilator vitamin