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thiouracil

Upper-Intermediate (B2)

IPA: //θaɪˈʊərəsɪl//

KK: /θaɪˈʊərəˌsɪl/

noun
Definition

A white crystalline substance that affects the production of thyroid hormones and is used to treat conditions like hyperthyroidism.


Example

The doctor prescribed thiouracil to help manage her hyperthyroidism.


Conversation
Sloth A
Have you ever heard of thiouracil?
Sloth B
Yeah, isn’t it used to treat hyperthyroidism?
Sloth A
Exactly! It helps reduce the thyroid gland's activity.
Sloth B
That’s interesting! I didn’t know how it worked.

Synonyms & Antonyms
Synonyms
antithyroid
thyroidinhibitor
thyrostat
Antonyms
thyroxine
hormone
stimulant
Root Explanation

Thiouracil is formed from "thio-" (meaning sulfur) and "uracil" (a nitrogenous base found in RNA). The word refers to a compound that contains sulfur and is related to uracil, which is a component of RNA.

Memory Tip

Think of 'thio-' meaning sulfur, and 'uracil' as a part of RNA — thiouracil is a compound that includes sulfur and is connected to RNA.

Visually Confused Words
thoracical
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