red lead: meaning, definition, pronunciation and examples
LowTechnical, Historical
Quick answer
What does “red lead” mean?
A bright red or orange-red poisonous compound, lead tetroxide (Pb₃O₄), used historically as a pigment in paints, ceramics, and primers, and in the manufacture of batteries and glass.
Audio
Pronunciation
Definition
Meaning and Definition
A bright red or orange-red poisonous compound, lead tetroxide (Pb₃O₄), used historically as a pigment in paints, ceramics, and primers, and in the manufacture of batteries and glass.
Refers to the pigment itself, often associated with its use in anti-corrosion paints (e.g., for ships and bridges) and in traditional artists' materials. It can also be used metonymically for a warning sign or a hazardous material due to its toxicity and distinctive colour.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Both varieties use the same term. Spelling of related words may differ (e.g., 'colour' vs. 'color').
Connotations
In both varieties, it connotes industrial use, toxicity, and historical applications. There is no notable difference in connotation.
Frequency
Equally low frequency in both varieties, limited to technical fields.
Grammar
How to Use “red lead” in a Sentence
Noun + verb: Red lead is applied as a primer.Noun + preposition: a primer of red leadAdjective + noun: toxic red lead pigmentVocabulary
Collocations
Usage
Meaning in Context
Business
In business, used in the context of manufacturing, supply chains for industrial paints, and regulatory discussions on hazardous materials.
Academic
In academic contexts, found in chemistry textbooks, papers on corrosion science, and art history research on historical pigments.
Everyday
Virtually never used in casual conversation. If encountered, it might be in the context of renovating old buildings or discussing historical art techniques.
Technical
The primary domain. Used in engineering, chemistry, industrial painting, and conservation manuals to specify a material for corrosion inhibition or as a historical pigment.
Vocabulary
Synonyms of “red lead”
Vocabulary
Antonyms of “red lead”
Watch out
Common Mistakes When Using “red lead”
- Mispronouncing 'lead' as /liːd/ (like the verb) instead of /lɛd/ (the metal).
- Confusing 'red lead' with 'white lead' (basic lead carbonate) or 'black lead' (graphite).
- Using it as a verb or adjective (e.g., 'to red lead a surface' is non-standard).
FAQ
Frequently Asked Questions
Its use is heavily restricted or banned in many countries due to its toxicity, especially in consumer products. It is still used in some specific industrial applications under strict controls, but safer alternatives are preferred.
It was valued for its bright colour, its opacity, and its ability to inhibit rust and corrosion on iron and steel, making it an effective primer for metal structures.
Red lead (lead tetroxide, Pb₃O₄) is red and used mainly as a primer and in glass/batteries. White lead (basic lead carbonate) is white and was used historically as a pigment in artists' paints and cosmetics. Both are toxic compounds of lead.
Professional conservators and scientists use techniques like X-ray fluorescence (XRF) or Raman spectroscopy to detect the presence of lead tetroxide without damaging the artwork.
A bright red or orange-red poisonous compound, lead tetroxide (Pb₃O₄), used historically as a pigment in paints, ceramics, and primers, and in the manufacture of batteries and glass.
Red lead is usually technical, historical in register.
Red lead: in British English it is pronounced /ˌrɛd ˈlɛd/, and in American English it is pronounced /ˌrɛd ˈlɛd/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms]”
Learning
Memory Aids
Mnemonic
Imagine a RED warning sign on a LEAD pipe, indicating the poisonous red lead coating inside.
Conceptual Metaphor
TOXICITY IS A WARNING SIGN (its red colour metaphorically signals danger).
Practice
Quiz
In which of the following contexts is 'red lead' most likely to be discussed?