Definition of -aceous
1 a : characterized by : full of <setaceous> b : consisting of <diatomaceous> : having the nature or form of <tuffaceous>
2 a : of or relating to a group of animals typified by (such) a form <cetaceous> or characterized by (such) a feature <crustaceous> b : of or relating to a plant family <solanaceous>
Origin and Etymology of -aceous
Seen and Heard
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