Poison and toxicity with 毒
The kanji 毒 means poison or something harmful in a concentrated way. It also covers figurative harm such as cruel words or corrosive influence.
Toxic Effects
中毒 (Poisoning)
中毒 means poisoning, intoxication, or addiction to a substance or activity.
It combines 中 (inside) with 毒 (poison) to show poison taking effect within.

Cocoa wonders why it is that she didn’t like coffee before, but she’s crazy about the coffee Chino makes.
- チノ:
- 「でもココアさんは味
( の違( いわからないじゃないですか」- “But you don't know the difference in taste, right?”
- 「ただのカフェイン中毒
( ですよ」- “That makes it just a caffine addiction.”
- “But you don't know the difference in taste, right?”
- ココア:
- 「中毒
( 扱( いされた…」- “I got treated like an addict...”
Toxic Substances
毒 (Poison)
毒 A client tells Detective Mouri about the condition in which she found her deceased husband. Hearing the details, Conan identifies the likely poison, including the composition, the dosage required to kill, and the internal effects it has on a person. When Ran asks how he knows all this, Conan covers by saying the monster villain on the kid’s TV show he watched explained it.
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毒物 (Poisonous substance)
毒物
It combines 毒 (poison) with 物 (thing) to show a poisonous thing.

Inspector Megure suggests the murder suspect committed suicide by drowning himself. The medical examiner disagrees.
- 監察医
( : - 「ですが死因
( は溺死( ではありません…」- “However, drowning wasn't the cause of death...”
- 目暮
( : - 「え?」
- “What?”
- 監察医
( : - 「解剖
( してみないと断定( できませんが… おそらく毒物( を飲( んだあと池( に入( ったものと…」- “I can't say for certain without an autopsy... but it's likely he took poison and then entered the pond...”