modality

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The fact, state, or quality of being modal.
• noun A tendency to conform to a general pattern or belong to a particular group or category.
• noun Logic The classification of propositions on the basis of whether they assert or deny the possibility, impossibility, contingency, or necessity of their content.
• noun The ceremonial forms, protocols, or conditions that surround formal agreements or negotiations.
• noun Medicine A therapeutic method or agent, such as surgery, chemotherapy, or electrotherapy, that involves the physical treatment of a disorder.
• noun Physiology Any of the various types of sensation, such as vision or hearing.

from The Century Dictionary.

• noun The fact of being a mode.
• noun A determination of an accident; a mode.
• noun Mode in the logical sense; that wherein problematical, assertoric, and apodictic judgments are distinguished.
• noun In civil law, the quality of being limited as to time or place of performance, or, more loosely, of being suspended by a condition: said of a promise.
• noun 5. Same as modalism.
• noun In psychology:
• noun 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.
• noun Hence— the sense-department itself: as, sensations of different modalities.

from the GNU version of the Collaborative International Dictionary of English.

• noun The quality or state of being modal.
• noun (Logic & Metaph.) A modal relation or quality; a mode or point of view under which an object presents itself to the mind. According to Kant, the quality of propositions, as assertory, problematical, or apodeictic.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun the state of being modal
• noun logic the classification of propositions on the basis on whether they claim possibility, impossibility, contingency or necessity; mode
• noun linguistics the inflection of a verb that shows how its action is conceived by the speaker; mood
• noun medicine any method of therapy that involves therapeutic treatment
• noun any of the senses (such as sight or taste)
• noun semiotics a particular way in which the information is to be encoded for presentation to humans, i.e. to the type of sign and to the status of reality ascribed to or claimed by a sign, text or genre
• noun theology the organization and structure of the church, as distinct from sodality or parachurch organizations
• noun music the subject concerning certain diatonic scales known as musical modes
• noun sociology a concept in Anthony Giddens structuration theory

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a method of therapy that involves physical or electrical therapeutic treatment
• noun a particular sense
• noun verb inflections that express how the action or state is conceived by the speaker
• noun a classification of propositions on the basis of whether they claim necessity or possibility or impossibility