Langimage
English

autoluminescence

|au-to-lu-mi-nes-cence|

C2

🇺🇸

/ˌɔːtoʊˌluːməˈnɛsəns/

🇬🇧

/ˌɔːtəʊˌluːmɪˈnɛsns/

self-produced light

Etymology
Etymology Information

'autoluminescence' originates from Greek and Latin, specifically Greek 'autos' (αὐτός) meaning 'self' and Latin 'lūminēscentia' (from 'lumen') meaning 'light'.

Historical Evolution

'autoluminescence' was formed in Modern English by combining the Greek prefix 'auto-' with the Latin-derived noun 'luminescence' (from medieval/early modern scientific Latin 'lūminēscēns'/'lūminēscentia'), resulting in the compound modern English 'autoluminescence'.

Meaning Changes

Initially the components meant 'self' and 'light', and the compound has retained the meaning 'self-produced light' in modern scientific usage.

Meanings by Part of Speech

Noun 1

light emitted spontaneously by a substance or system as a result of internal chemical or biochemical reactions, without external excitation.

The researchers measured the autoluminescence of the tissue sample to assess metabolic activity.

Synonyms

self-luminescencechemiluminescencebioluminescence

Antonyms

fluorescence (requires external excitation)reflection

Last updated: 2025/11/26 16:40