© 2026 Sloth Lingo. Learn easy. Lounge wisely.

phenothiazine

Upper-Intermediate (B2)

IPA: //ˌfɛnəˈθaɪəˌzin//

KK: /fɛnəˈθaɪəˌzin/

noun
Definition

A chemical compound used in medicines and agriculture, particularly for treating mental health issues and as an insecticide.


Example

The veterinarian prescribed phenothiazine to treat the animal's parasitic infection.


Conversation
Sloth A
Have you ever heard of phenothiazine?
Sloth B
Yeah, I think it's used in some medications, right?
Sloth A
Exactly! It's often used to treat psychiatric disorders like schizophrenia.
Sloth B
That's interesting! I didn't know it had such specific uses.

Synonyms & Antonyms
Synonyms
chlorpromazine
thioridazine
promethazine
Antonyms
stimulant
activator
energizer
Root Explanation

Phenothiazine is formed from "pheno-" (from Greek "phainō", meaning to show or to appear) and "thiazine" (from "thiazole", which is derived from Greek "thio-" meaning sulfur and "azote" meaning nitrogen). The word refers to a compound that shows properties related to sulfur and nitrogen in its structure.

Memory Tip

Think of 'pheno-' meaning to 'show' something, and 'thiazine' relating to sulfur and nitrogen — this helps you remember that phenothiazine is a compound that shows specific chemical properties involving these elements.

Visually Confused Words
benzothiazine
benzophenothiazine
Is this page helpful?