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

致死性家族性不眠症

Reading

Kana: ちしせいかぞくせいふみんしょう
Romaji: chishiseikazokuseifuminshō
Kana
Romaji

Definition

1

fatal familial insomnia; FFI

(Medicine, etc. term)

Kanji

Readings: チ、 いた.す
Meanings: doth, do, send, forward, cause, exert, incur, engage
Readings: シ、 し.ぬ、 し.に-
Meanings: death, die
Readings: セイ、 ショウ、 さが
Meanings: sex, gender, nature
Readings: カ、 ケ、 いえ、 や、 うち
Meanings: house, home, family, professional, expert, performer
Reading: ゾク
Meanings: tribe, family
Readings: フ、 ブ
Meanings: negative, non-, bad, ugly, clumsy
Readings: ミン、 ねむ.る、 ねむ.い
Meanings: sleep, die, sleepy
Reading: ショウ
Meanings: symptoms, illness