IPA: /ˌtraɪˈreɪdiˌeɪt/
KK: /trɪˈreɪdiːt/
Describing something that has three rays or branches extending from a central point.
The triradiate design of the sculpture made it stand out in the gallery.
Triradiate is formed from "tri-" (meaning three) and "radiate" (from Latin "radiatus", meaning to emit rays). The word describes something that emits or has three rays or branches.
Think of 'tri-' meaning three and 'radiate' meaning to emit rays — this helps you remember that triradiate refers to something that has three rays.