1
a
: yielding something abundantly
a copious harvest
copious springs
b
: plentiful in number
copious references to other writers
2
a
: full of thought, information, or matter
… Shakespeare, whose soul was so copious …—Gilbert Highet
b
: profuse or exuberant in words, expression, or style
a copious talker
3
: present in large quantity : taking place on a large scale
copious weeping
copious food and drink
copiously
adverb
copiousness
noun
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Merriam-Webster unabridged
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