serine

noun

ser·​ine ˈser-ˌēn 

: a crystalline nonessential amino acid C₃H₇NO₃ that occurs as a residue in many proteins

Examples of serine in a Sentence

Recent Examples on the Web

Wellness and supplement ingredients Further interest in serine as an ingredient reflects a focus on cognitive health and stress management for consumers, as well as a desire for mental well-being. — Vogue Business Team, Vogue, 7 Nov. 2025

This morning, included in my breakfast was serine, octanoic acid, E160c, phenylacetaldehyde, hepta-2-enal and lots of other chemicals. — Sheah Rarback, Miami Herald, 6 Nov. 2025

One study found that the topical application of a 15% azelaic acid gel on rosacea-prone skin reduced what is known as the serine protease activity that causes inflammation. — Lottie Winter, Glamour, 6 Oct. 2025

New research led by Rockefeller University, New York, has explored how a non-essential amino acid, serine, influences the behavior of HFSCs and discovered that when serine levels are low, the cells prioritize wound healing over hair growth. — New Atlas, 19 July 2025

But their relative levels remained consistent before and after the chunks were plunged into the asteroid simulation—there was always more glycine than serine, and more serine than alanine. — WIRED, 31 Jan. 2023

Word History

Etymology

International Scientific Vocabulary sericin + -ine entry 2

First Known Use

1859, in the meaning defined above

Rhymes for serine

• beanie
• genie
• sweeney
• sweeny
• teeny
• acini
• aldine
• amine
• arsine
• carinii
• cosine
• delphine

Medical Definition

serine

noun

ser·​ine ˈse(ə)r-ˌēn 

: a nonessential amino acid C₃H₇NO₃ that occurs especially as a structural part of many proteins and phosphatidylethanolamines and is a precursor of glycine

—abbreviation Ser