absorption spectrum

noun

Pronunciation: /əbˈzɔːrpʃən ˈspɛktrəm/

Definition

A pattern of dark lines or bands produced by the absorption of specific wavelengths of light as it passes through a substance.

Examples

• Astronomers analyze the absorption spectrum of a distant star to determine which elements are present in its atmosphere.

• The absorption spectrum of chlorophyll explains why plants appear green, as they absorb red and blue light while reflecting green.

• Each chemical element leaves a unique fingerprint in its absorption spectrum, allowing scientists to identify materials from light alone.

Synonyms of absorption spectrum

Words with a similar meaning to absorption spectrum:

• light pattern
• spectral signature

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