cu·mu·lo·nim·bus 
(kym′yə-lō-nĭmbəs)
(kym′yə-lō-nĭmbəs)n. pl. cu·mu·lo·nim·bus·es or cu·mu·lo·nim·bi (-bī)
An extremely dense, vertically developed cumulus with a low dark base and fluffy masses that extend to great heights, usually producing heavy rains, thunderstorms, or hailstorms.
- stereomicroscope
- stereomicroscopic
- stereomicroscopy
- stereophonic
- stereophonically
- stereophony
- stereopsis
- stereopticon
- stereoscope
- stereoscopic
- stereoscopically
- stereoscopist
- stereoscopy
- stereotactic
- stereotactical
- stereotactically
- stereotactic radiosurgery
- stereotaxic
- stereotaxical
- stereotaxically
- stereotaxis
- stereotaxy
- stereotype
- stereotyped
- stereotyper