Chinese

Adjective

凹凸

1. uneven, bumpy, rugged
   • 不是我無食力身軀閃這一滑，多管是少人行山路凹凸。 [Classical Chinese, trad.]
     不是我无食力身躯闪这一滑，多管是少人行山路凹凸。 [Classical Chinese, simp.]
     From: 14th century, Poetry by Qin Jianfu

     Bùshì wǒ wú shílì shēnqū shǎn zhè yī huá, duōguǎn shì shǎo rén xíng shānlù āotū. [Pinyin]

     The reason I slipped is not because my starving body was feeble; it was due to the roughness of the mountain road since not many people had walked on this.

2. (optics, mathematics) concavo-convex
   • 論文是有關實解析函數在極值點附近的凹凸性的。 [MSC, trad.]
     论文是有关实解析函数在极值点附近的凹凸性的。 [MSC, simp.]

     Lùnwén shì yǒuguān shíjiěxīhánshù zài jízhídiǎn fùjìn de āotūxìng de. [Pinyin]

     The journal article was about concavity-convexity of real analytic functions near extremities.

Derived terms

Descendants

Japanese

Etymology

aputotu > aɸutotu > *awutotu > autotu > ɔːtotu > oːtotu.

Pronunciation

• IPA^(key): /oːtotsu/

Noun

凹凸 ‎(hiragana おうとつ, romaji ōtotsu, historical hiragana あふとつ)

1. that which has a non-flat surface; uneven, bumpy

   路面凹凸 (ろめんおうとつ)あり

   romen ōtotsu ari

   Caution: rough road ahead

Anagrams

• 凸凹 (でこぼこ) ‎(dekoboko)