1) that which has been made after the likeness of something
1a) a figure, image, likeness, representation
1b) likeness, i.e. resemblance, such as amounts almost to equality or identity
Part of Speech: noun neuter
Citing in TDNT: 5:191, 684
From G3666; a form; abstractly resemblance: - made like to, likeness, shape, similitude.
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root ὁμοίωμα; click on the second column to search for that grammatical form of the root ὁμοίωμα; click on the third column to search for that word and grammatical form; click on the total to search for the root ὁμοίωμα.