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Exam: TOEFL

thiol

IPA: /θaɪˈɔl/

KK: /θaɪˈɔl/

noun

Definition: A type of chemical compound that contains a sulfur atom bonded to a hydrogen atom, similar to alcohols but with sulfur instead of oxygen, often having strong and unpleasant smells.

Example: The chemist studied the properties of thiols to understand their effects in organic reactions.

thiophene

IPA: /θaɪəˈfiːn/

KK: /θaɪəˈfin/

noun

Definition: A colorless liquid compound that contains sulfur and is used in various chemical applications, resembling benzene in structure.

Example: Thiophene is often used as a solvent in chemical reactions.

thiosulfate

IPA: //ˌθaɪoʊˈsʌlfeɪt//

KK: /θaɪoʊˈsʌlfeɪt/

noun

Definition: A chemical compound that is a salt or ester derived from thiosulfuric acid, often containing the anion SO.

Example: Thiosulfate is commonly used in photography and as a reducing agent in chemical reactions.

thiouracil

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.

thiourea

IPA: /θaɪˈʊəriə/

KK: /θaɪˈʊəriə/

noun

Definition: A white crystalline substance used in photography and organic chemistry, similar to urea.

Example: Thiourea is often used in the development of photographs.

thirdly

IPA: /ˈθɜːrdli/

KK: /ˈθɜrdli/

adverb

Definition: In the third position or order; used to introduce the third point in a list or argument.

Example: Firstly, we need to gather the data; secondly, we will analyze it; and thirdly, we will present our findings.

thirst

IPA: /θɜːrst/

KK: /θɜrst/

intransitive verb

Definition: To feel a strong need or desire to drink something.

Example: After running for an hour, I began to thirst for water.

noun

Definition: A feeling of needing to drink because your mouth and throat are dry.

Example: After running for an hour, I felt a strong thirst and needed to drink water.

thirstier

IPA: /ˈθɜːrstiər/

KK: /ˈθɜrstiər/

adjective

Definition: Having a strong desire for water or other liquids; feeling the need to drink more than usual.

Example: After running in the hot sun, I felt thirstier than ever.

thirstiest

IPA: /ˈθɜːrstiɪst/

KK: /ˈθɜrstiɪst/

adjective

Definition: Having the greatest need for water or drink; extremely dry or parched.

Example: After running the marathon, I felt like the thirstiest person in the world.

thirstily

IPA: /ˈθɜːrstɪli/

KK: /ˈθɜrˌsti li/

adverb

Definition: In a way that shows a strong desire for something, especially for a drink.

Example: After running in the heat, she drank thirstily from her water bottle.

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