Omnimax
/ˈɒmnɪmæks/noun
mass noun
- trademark a technique of widescreen cinematography in which 70 mm film is projected through a fisheye lens on to a hemispherical screen〈商标〉球幕电影, 全天域电影（一种将70毫米的胶片通过鱼眼镜头投射到半球形银幕上的宽银幕电影技术）。
词源
1970s: from omni- 'everywhere' + MAXIMUM.