What does iso mean Meaning and Definition

Pronunciation

/ˈaɪsəʊ/ 🔊

Part of Speech

Noun or abbreviation

Definition

A term used in various contexts, including photography, film, and technology, referring to the International Organization for Standardization, ISO, which establishes standards and guidelines.

Examples

• The photographer used an ISO of 1600 to capture the dark scene.
• The film was shot at ISO 250 for optimal lighting.

Synonyms

• International Organization for Standardization
• Standardization body

Etymology

The term “iso” is derived from the Greek prefix “isos,” meaning “equal” or “standard,” and has been used to represent the International Organization for Standardization since its establishment in 1947.

Usage Notes

In photography, ISO refers to the camera’s sensitivity to light, with higher ISOs capturing more detail in low-light conditions, but potentially introducing noise.

In film, ISO is used to measure the film’s sensitivity to light, with higher ISOs requiring more exposure to achieve the desired effect.

Cultural References

In popular culture, “iso” has been referenced in music, film, and TV shows, often symbolizing independence, isolation, or a sense of being “locked down.”

Idiomatic Expressions or Phrases

Being “in iso” or “on iso” refers to being isolated or alone, often due to health or social reasons.

Related Words or Phrases

• ISO 9001: a quality management standard
• ISO 14001: an environmental management standard
• standardization

Collocations

• ISO 5000: a standard for energy efficiency
• ISO 27001: a standard for information security
• high ISO
• low ISO

Frequency of Use

Common Misspellings

• Isa
• Iso
• Isso
• Isu