Definition of "speleology" [speleology]

• The scientific study of caves. (noun)
• Exploration of caves. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Research has been conducted on flora, fauna, speleology, geomorphology and geology of both territories."
• "Just so you know, the geological study of caves on Earth or on the Moon or Mars is called speleology."
• "Beltane had once had a small bio-speleology department, but when Yain Takuat had died, there had been no replacement for his specialty."