triiodothyronine
Word Rarity
Very rare
Frequency: Zipf frequency 1.47 in modern English
23
Scrabble Score
16
Letters
4
Syllables
9
Unique Chars
Meaning
noun
A thyroid hormone, with the chemical formula C₁₅H₁₂I₃NO₄, affecting almost every process in the body, including body temperature, growth, and heart rate.
Countable; Uncountable
Etymology
From tri- + iodothyronine.