Func"tion*al (?), a.


Pertaining to, or connected with, a function or duty; official.

2. Physiol.

Pertaining to the function of an organ or part, or to the functions in general.

Functional disease Med., a disease of which the symptoms cannot be referred to any appreciable lesion or change of structure; the derangement of an organ arising from a cause, often unknown, external to itself opposed to organic disease, in which the organ itself is affected.


© Webster 1913.