• adj. 極端的；過分的
• n. 極端主義者；過激論者；急進論者
• n. (Ultra)人名；(德、葡)烏爾特拉

來自PIE*al, 其它，那邊，詞源同alias, else, -tra, 比較級后綴，詞源同entry, alternate, interior.

1. Ozone is produced by the reaction between oxygen and ultra-violet light.

臭氧由氧氣和紫外線發生反應而產生。

來自柯林斯例句

2. This boot offers ultra . It features a molded rubber lugged outsole for traction and slip resistance.

ULTRA作為澳洲UGG最頂真個羊皮靴系列產品之一,外部最為突出的特性即是其格外組織的橡膠外底具有優良的抓地性能和防滑性能.

來自互聯網

3. Her father is an ultra - conservative who is still opposed to freedom to choose her spouse.

她爸是個老古董,現在還反對她自由戀愛.

來自《現代漢英綜合大詞典》

4. The Pioneer probes have on board ultra-violet instruments which are measuring light that we can't measure on the earth.

“先驅者號”太空探測器上裝有紫外線儀器，能夠對在地球上探測不到的光進行測量。

來自柯林斯例句

5. After 10 minutes the surplus material is washed away and any remaining deposit examined with ultra violet light.

10分鐘后剩余的物質被沖洗掉，任何殘留的沉淀物則會用紫外線進行檢測。

來自柯林斯例句