acetyl

American  

[uh-seet-l, uh-set-l, as-i-tl] / əˈsit l, əˈsɛt l, ˈæs ɪ tl /

adjective

Chemistry.

1. containing the acetyl group.

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acetyl British  

/ ˈæsɪˌtaɪl, ˌæsɪˈtɪlɪk, əˈsiːtaɪl /

noun

1. (modifier) of, consisting of, or containing the monovalent group CH 3 CO-

   acetyl group or radical

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acetyl Scientific  

/ ə-sēt′l,ăs′ĭ-tl /

1. The radical CH ₃ CO, derived from acetic acid.

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Other Word Forms

• acetylic
  adjective

Etymology

Origin of acetyl

First recorded in 1860–65; acet- + -yl

Example Sentences

The team discovered that during stress, a protein known as SIRT1 removes acetyl groups from MED1.

From Science Daily • Dec. 1, 2025

The pieces that Huang and his colleagues were most interested in were biologically active molecular components known as amines and acetyl groups that adorn PNAG's sugary backbone.

From Science Daily • Apr. 24, 2024

Check with her about supplements such as alpha-lipoic acid, benfotiamine and acetyl L-carnitine.

From Seattle Times • Jan. 4, 2023

Figure 7.9 Upon entering the mitochondrial matrix, a multi-enzyme complex converts pyruvate into acetyl CoA.

From Textbooks • Jun. 9, 2022

The determination of the acetyl by saponification is also subject to an error sufficiently large to preclude the results being applied to solve the point.

From Researches on Cellulose 1895-1900 by Cross, C. F.