Tar is the thick liquid product of the dry distillation and pyrolysis of organic hydrocarbons primarily sourced from vegetation masses, whether fossilized as with coal, or freshly harvested.
tˈɑːɹ ɪz ðə θˈɪk lˈɪkwɪd pɹˈɑːdʌkt ʌvðə dɹˈaɪ dɪstɪlˈeɪʃən ænd pˌaɪɹoʊlˈaɪsiz ʌv ɔːɹɡˈænɪk hˈaɪdɹəkˌɑːɹbənz pɹaɪmˈɛɹᵻli sˈoːɹst fɹʌm vˌɛdʒɪtˈeɪʃən mˈæsᵻz, wˈɛðɚ fˈɑːsəlˌaɪzd æz wɪð kˈoʊl, ɔːɹ fɹˈɛʃli hˈɑːɹvɪstᵻd.