modality

The fact, state, or quality of being modal.

A tendency to conform to a general pattern or belong to a particular group or category.

The classification of propositions on the basis of whether they assert or deny the possibility, impossibility, contingency, or necessity of their content.

The ceremonial forms, protocols, or conditions that surround formal agreements or negotiations.

A therapeutic method or agent, such as surgery, chemotherapy, or electrotherapy, that involves the physical treatment of a disorder.

Any of the various types of sensation, such as vision or hearing.

In psychology:

The nature or character of sensation or stimulus as determined by the sense-department to which it belongs or appeals: a term proposed by Helmholtz, to avoid a confusing use of quality.

Hence— the sense-department itself: as, sensations of different modalities.

The fact of being a mode.