biochemical

adjective

bio·​chem·​i·​cal ˌbī-ō-ˈke-mi-kəl 

1

: of or relating to biochemistry

2

: characterized by, produced by, or involving chemical reactions in living organisms

a biochemical defect in the brain

biochemical noun

biochemically

ˌbī-ō-ˈke-mi-k(ə-)lē 

adverb

Examples of biochemical in a Sentence

Recent Examples on the Web

Our biochemical response to that type of stress is to release cortisol which eventually leads to the harmful downstream effects on our bodies, such as high blood pressure. —Andrea Kane, CNN Money, 1 Apr. 2025

That biochemical brutality has made the snake a target for scientists and smugglers alike. —Scott Travers, Forbes.com, 27 Mar. 2025

The biochemical reactions inside mitochondria are a big source of reactive oxygen species, chemically reactive waste products that can damage our tissues. —Tim Vernimmen, Smithsonian Magazine, 21 Mar. 2025

In the course of their whirring biochemical activity, cells not only produce energy but also synthesize metabolites: molecular biological building blocks, such as amino acids, nucleotides, carbohydrates and lipids. —Viviane Callier, Quanta Magazine, 21 Mar. 2025

Word History

Etymology

International Scientific Vocabulary

First Known Use

1836, in the meaning defined at sense 1

Phrases Containing biochemical

• biochemical oxygen demand

Rhymes for biochemical

• alchemical
• polemical
• academical
• agrochemical
• cytochemical
• geochemical
• histochemical
• microchemical
• neurochemical
• petrochemical
• photochemical
• phytochemical

Medical Definition

biochemical

adjective

bio·​chem·​i·​cal -ˈkem-i-kəl 

1

: of or relating to biochemistry

2

: characterized by, produced by, or involving chemical reactions in living organisms

biochemical abnormalities

biochemical processes

biochemical noun

biochemically

-k(ə-)lē 

adverb