Chemicals and Drugs

Acids

Chemical compounds which yield hydrogen ions or protons when dissolved in water, whose hydrogen can be replaced by metals or basic radicals, or which react with bases to form salts and water (neutralization). An extension of the term includes substances dissolved in media other than water. (Grant & Hackh's Chemical Dictionary, 5th ed)

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Chemical compounds which yield hydrogen ions or protons when dissolved in water, whose hydrogen can be replaced by metals or basic radicals, or which react with bases to form salts and water (neutralization). An extension of the term includes substances dissolved in media other than water. (Grant & Hackh's Chemical Dictionary, 5th ed)

MeSH Record

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MeSH Record

Synonyms

1 entry terms
  • Acid

MeSH Record

Aspects Covered

24 allowable subheadings

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

MeSH Record

Indexing Annotation

general or unspecified; prefer specifics; do not use for specific acids, acid-fast bacteria, acid reactions, etc.

MeSH Hierarchy

Tree Number

  1. D01w.029w

AMA Style

References

  1. National Library of Medicine. Acids. Medical Subject Headings (MeSH). 2026. Unique ID D000143. http://id.nlm.nih.gov/mesh/2026/D000143
  2. Acids. In: Wikipedia. https://en.wikipedia.org/wiki/Acid
  3. Acids. In: Wikidata. https://www.wikidata.org/wiki/Q11158