Chemicals and Drugs

Oxygen

An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration.

MeSH Record

Classification

Broader headings

Narrower headings

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See Also

MeSH Record

Synonyms

3 entry terms
  • Oxygen-16
  • Oxygen 16
  • Dioxygen

MeSH Record

Aspects Covered

23 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analysis, blood, cerebrospinal fluid, chemistry, classification, economics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, physiology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, urine.

MeSH Record

Indexing Annotation

/metab; consider also OXYGEN CONSUMPTION; /physiol for O2 in pulmonary respiration process but tissue respiration = OXYGEN CONSUMPTION; /ther use; consider also OXYGEN INHALATION THERAPY or HYPERBARIC OXYGENATION; /tox & /pois; consider also HYPEROXIA

MeSH Record

History Note

1963; for DIOXYGEN use OXYGEN (NM) 1980-2001

MeSH Hierarchy

Tree Numbers

  1. D01w.268w.185w.550w
  2. D01w.362w.670w

MeSH Record

NLM Classification

QV 312

AMA Style

References

  1. National Library of Medicine. Oxygen. Medical Subject Headings (MeSH). 2026. Unique ID D010100. http://id.nlm.nih.gov/mesh/2026/D010100
  2. Oxygen. In: Wikipedia. https://en.wikipedia.org/wiki/Oxygen
  3. Oxygen. In: Wikidata. https://www.wikidata.org/wiki/Q629