ECOLOGICAL

\ˌɛkəlˈɒd͡ʒɪkə͡l], \ˌɛkəlˈɒd‍ʒɪkə‍l], \ˌɛ_k_ə_l_ˈɒ_dʒ_ɪ_k_əl]\
Sort: Oldest first
 
2011 - English Dictionary Database
By DataStellar Co., Ltd
 
2006 - WordNet 3.0
By Princeton University