Relating to or belonging to the ginkgo family of plants; characteristic of ginkgo trees.
From 'Ginkgoaceae' (the plant family) + '-ous' (adjective suffix). This creates an adjective describing anything pertaining to this plant family.
If you see a word ending in '-aceous,' it almost always means a plant family—it's from Latin and signals 'this belongs to the group of organisms we just mentioned!'
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