依い存ぞん症しょう

also: いそんしょう

い

ぞ

ん

しょ

う

Common word

Meanings

1

noun

Medical and everyday term for substance dependence or behavioral addiction. Often used in compounds like アルコール依存症 (alcoholism).

症しょう

が

若わか

者もの

の

間あいだ

で

問もん

題だい

に

なっ

て

いる

。

Smartphone addiction has become a problem among young people.

依存症
- いぞんしょう
  Standard kanji spelling; the reading いぞんしょう is the most common.
- いそんしょう
  Alternate reading; less common but still encountered.
いそんしょう

依い存ぞん
依存 is the general noun for 'dependence' or 'reliance', while 依存症 specifically refers to a pathological condition of addiction.
中ちゅう毒どく
中毒 means 'poisoning' or 'intoxication' and can be used for acute poisoning or strong addiction (e.g., 食中毒 food poisoning, アルコール中毒 alcoholism). 依存症 is more clinical for chronic dependence.

Compound of 依存 (izon, 'dependence') + 症 (shō, 'symptom' or 'condition'). The reading いぞんしょう is standard; いそんしょう is a variant.