© 2026 Sloth Lingo. Learn easy. Lounge wisely.

thrombin

Upper-Intermediate (B2)

IPA: //ˈθrɒmbɪn//

KK: /θrɑmˈbɪn/

noun
Definition

A type of enzyme in the blood that helps with the process of clotting by changing a protein called fibrinogen into fibrin.


Example

Thrombin plays a crucial role in the blood clotting process, preventing excessive bleeding.


Conversation
Sloth A
I read that thrombin plays a crucial role in blood clotting.
Sloth B
Really? I didn't know it was that important.
Sloth A
Yeah, it converts fibrinogen to fibrin to help stop bleeding.
Sloth B
That's fascinating! It's amazing how our bodies work.

Synonyms & Antonyms
Synonyms
enzyme
protease
catalyst
Antonyms
anticoagulant
inhibitor
diluent
Root Explanation

Thrombin is derived from the Greek word "thrombos" (meaning clot) and the suffix "-in" (used in biochemistry to denote proteins). Thrombin is a protein involved in the clotting process, thus relating directly to its root meaning of clot.

Memory Tip

Think of 'thrombos' which means clot, and remember that thrombin is a protein that helps in the clotting process.

Visually Confused Words
prothrombin
antithrombin
Is this page helpful?