2. Suffix. Belonging to a taxonomic family or other group ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of -aceous
+ve -'d -'er -0r -a -a- -a-palooza -a-thon -ab -ability | -able -ably -ac -acea -acean -aceous (current term) -acity -ad -ade -adelic | -adelphous -adic -ae -aemia -age -agog -agogue -agogy -aholic -al |