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Adjective: cavernous  ka-vu(r)-nus
  1. Being or suggesting a cavern
    "vast cavernous chambers hollowed out of limestone"
     
  2. (physiology) filled with vascular sinuses and capable of becoming distended and rigid as the result of being filled with blood
    "cavernous tissue";
    - erectile

See also: expansive, hollow

Encyclopedia: Cavernous

Nearest

cave man
cave myotis
caveat
caveat emptor
Cavell
caveman
Cavendish
caver
cavern
cavern out
cavernous
cavernous sinus
cavetto
Cavia
Cavia cobaya
Cavia porcellus
caviar
caviare
Caviidae
cavil
caviler