1. 朗朗的：orology 山理学 | orotund 朗朗的 | orphan 孤儿

2. (声音)宏亮的,说大话的：ornithology 鸟类学 | orotund (声音)宏亮的,说大话的 | orthodontics 畸齿矫正学

3. 朗朗的/夸大的/做作的：orotherapy /乳清疗法/ | orotund /朗朗的/夸大的/做作的/ | oroxylin /木蝴蝶素/

4. 洪亮的;夸张的：鸟类学 Ornithology | 洪亮的;夸张的 Orotund | 整形手术 Orthopedics

adj

1. (of sounds) full and rich

e.g. orotund tones
the rotund and reverberating phrase
pear-shaped vowels

Synonym: rotundroundpear-shaped

2. ostentatiously lofty in style

e.g. a man given to large talk
tumid political prose

Synonym: bombasticdeclamatorylargetumidturgid