cavernous

Words with a similar base: cavernous

'cavernous'

[cavernous.s.01] as in: being or suggesting a cavern

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Examples:
vast cavernous chambers hollowed out of limestone

'cavernous'

[erectile.s.02] as in: filled with vascular sinuses and capable of becoming distended and rigid as the result of being filled with blood

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Examples:
erectile tissue
the penis is an erectile organ