polysynthetic language

Polysynthetic languages are highly synthetic languages, i.e. languages in which words are composed of many morphemes.The degree of synthesis refers to the morpheme-to-word ratio. Languages with more than one morpheme per word are synthetic. Polysynthetic languages lie at the extreme end of the synthesis continuum with a very high number of morphemes per word (at the other extreme are isolating or analytic languages with only one morpheme per word). These highly synthetic languages often have very long words that correspond to complete sentences in less synthetic languages. Examples of polysynthetic languages include Inuktitut, Mohawk, Classical Ainu, Central Siberian Yupik, Cherokee, Sora, Chukchi and numerous other languages of North America and Siberia. (from Wikipedia)