Typical, a.
Etymology: [L. typicus, Gr. typique. See Type.]
1. Of the nature of a type; representing something by a form, model, or resemblance; emblematic; prefigurative. The Levitical priesthood was only typical of the Christian. Atterbury.
2. (Nat. Hist.)
Combining or exhibiting the essential characteristics of a group; as, a typical genus. -- Typ"ic*al*ly, adv. -- Typ"ic*al*ness, n.
Shades of meaning
Fernald has no entry of its own for typical; he lists it under normal.
Where he writes about it:
Typical refers to such an assemblage of qualities as makes the specimen, genus, etc., a type of some more comprehensive group, while normal is more commonly applied to the parts of a single object; the specimen was typical; color, size, and other characteristics, normal. — from normal