The spelling of the word "coefficient sigmoideum" can seem quite challenging due to its scientific and technical nature. The IPA phonetic transcription can help to break it down into more manageable parts. The word begins with the sound "koh-eff-uh-suhnt," followed by "sihg-moi-dee-uhm." The "sihg-moi-dee-uhm" portion indicates that the word is referring to the sigmoid colon, a part of the intestine. A coefficient refers to a numerical or other constant that is multiplied by a variable, indicating that this term is involved in some sort of calculation or mathematical equation.
The amount of salts in the blood plasma, or the amount which must be added to distilled water to make an isotonic solution.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.