This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

拇指対向性

母指対向性

Readings

Kana: ぼしたいこうせい、おやゆびたいこうせい
Romaji: boshitaikousei, oyayubitaikousei
Kana
Romaji

Definition

1

ability to oppose the thumb; opposable thumb

Kanji

Readings: ボ、 おやゆび
Meaning: thumb
Readings: シ、 ゆび、 さ.す、 -さ.し
Meanings: finger, point to, indicate, put into, play (chess), measure (ruler)
Readings: タイ、 ツイ、 あいて、 こた.える、 そろ.い、 つれあ.い、 なら.ぶ、 むか.う
Meanings: vis-a-vis, opposite, even, equal, versus, anti-, compare
Readings: コウ、 む.く、 む.い、 -む.き、 む.ける、 -む.け、 む.かう、 む.かい、 む.こう、 む.こう-、 むこ、 むか.い
Meanings: yonder, facing, beyond, confront, defy, tend toward, approach
Readings: セイ、 ショウ、 さが
Meanings: sex, gender, nature
Readings: ボ、 はは、 も
Meaning: mother