Definitions

1. adjective

resembling or characteristic of a hypsiloid mountain, especially a mountain of volcanic origin with a conical or truncated summit

“The geologist identified the hypsiloid formation in the ancient volcano as a significant geological feature.”

2. noun

a hypsiloid mountain, especially a mountain of volcanic origin with a conical or truncated summit

“The team of scientists studied the hypsiloid mountain to gain insights into its geological history.”