Definition: filled with vascular sinuses and capable of becoming distended and rigid as the result of being filled with blood
Usage: erectile tissue; the penis is an erectile organ
Similar words: expansive
Definition: able or tending to expand or characterized by expansion
Usage: Expansive materials; the expansive force of fire
Synonyms: cavernous
Definition: being or suggesting a cavern
Usage: vast cavernous chambers hollowed out of limestone
Similar words: hollow
Definition: not solid; having a space or gap or cavity
Usage: a hollow wall; a hollow tree; hollow cheeks; his face became gaunter and more hollow with each year