A form of neurostimulation which uses a constant low current delivered to the brain area of interest via electrodes on the scalp, typically as a way of treating psychiatric conditions.

In a directional manner.

(uncountable) The condition of being directional. / (countable) A measure of the extent to which something is directional.

Alternative spelling of bidirectionality

Alternative spelling of nondirectionality

Alternative spelling of unidirectionality

plural of bi-directionality

plural of uni-directionality

Lacking direction; aimless.

plural of Directioner