coronal
- n flower arrangement consisting of a circular band of foliage or flowers for ornamental purposes
- The upshot: coronal mass ejections--the spewing out of billions of tons of solar material--and giant flares.
- One telescope aboard SOHO can provide three or four days' warning of major solar events by spotting coronal mass ejections.
- Plasma from coronal holes may well have triggered the geomagnetic storms that crippled the Anik E-1 satellite and temporarily disabled at least six others.