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Definition of -aceous in English:

-aceous

suffix

  • 1Botany
    Forming adjectives from nouns ending in -aceae (such as ericaceous from.

    • ‘Ericaceae)’

  • 2Biology Geology
    Forming adjectives describing similarity, especially in shape, texture, or color.

    ‘arenaceous’
    • ‘olivaceous’
    • ‘foliaceous’

Origin

From Latin -aceus ‘of the nature of’+ -ous.