The Collaborative International Dictionary of English v.0.48:

Prototype \Pro"to*type\, n. [F., from L. prototypus original,
   primitive, Gr. ?, ?; ? first + ? type, model. See Proto-,
   and Type]
   An original or model after which anything is copied; the
   pattern of anything to be engraved, or otherwise copied,
   cast, or the like; a primary form; exemplar; archetype.
   [1913 Webster]

         They will turn their backs on it, like their great
         precursor and prototype.                 --Burke.
   [1913 Webster]

WordNet (r) 3.0 (2006):

prototype
    n 1: a standard or typical example; "he is the prototype of good
         breeding"; "he provided America with an image of the good
         father" [syn: prototype, paradigm, epitome, image]

Moby Thesaurus II by Grady Ward, 1.0:

115 Moby Thesaurus words for "prototype":
   Geistesgeschichte, Hegelian idea, Kantian idea, Platonic form,
   Platonic idea, aesthetic form, analogue, ancestor, antecedent,
   antetype, antitype, archetype, art form, biotype, build, cast,
   classic, classic example, complex idea, configuration,
   conformation, criterion, cut, epitome, eternal object,
   eternal universal, example, exemplar, fashion, figuration, figure,
   first, foregoer, form, formal cause, format, formation, frame,
   fugleman, fugler, genotype, genre, highest category,
   history of ideas, ideal, idealism, ideate, ideatum, idee-force,
   illustration, imitatee, impression, innate idea, inner form,
   innovation, instance, layout, lead, make, makeup, masterpiece,
   masterwork, matrix, metaphor, mirror, modality, mode, model, mold,
   mould, new departure, noosphere, norm, noumenon, original,
   paradigm, paragon, pattern, pattern of perfection, percept,
   pilot model, precedent, precursor, predecessor, quintessence,
   referent, regulative first principle, representative, rule, sample,
   set, shape, significant form, simple idea, stamp, standard,
   structure, style, subsistent form, the Absolute, the Absolute Idea,
   the Self-determined, the realized ideal, transcendent idea,
   transcendent nonempirical concept, transcendent universal, turn,
   type, type species, type specimen, universal, universal concept,
   universal essence, urtext, very model



The Free On-line Dictionary of Computing (30 December 2018):

prototype

   1.  An early version of a product, designed to
   demonstrate feasability and elicit feedback.  A prototype
   usually has some subset of the functions, behaviour and
   appearance of the finished product.  It is usually made using
   a method suitable for producing a one-off rather than mass
   production.

   2.  In prototype-based programming, an object
   that is intended to be cloned to create similar objects which
   may then be modified independently and/or cloned themselves.

   (2010-03-02)