Standard Lemma guide

photochemical

adj · noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • CMU ARPABET: F OW2 T OW0 K EH1 M AH0 K AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
  • CMU ARPABET 2: F OW2 T OW0 K EH1 M IH0 K AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Of, relating to, or produced by photochemistry or by photochemical reactions.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Any chemical compound (such as silver halides) used in photography.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adjective

Meaning 3

of or relating to or produced by the effects of light on chemical systems

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *bheh2- Proto-Indo-European *bhéh2os Proto-Hellenic *pháwos Ancient Greek φᾰ́ος (phắos) Ancient Greek φῶς (phôs) Ancient Greek φωτο- (phōto-)der. English photo- Proto-Indo-European *ǵhew- Proto-Indo-European *-mn̥ Ancient Greek -μᾰ (-mă) Ancient Greek χῠ́μᾰ (khŭ́mă) Proto-Indo-European *-h2 Proto-Indo-European *-éh2 Proto-Indo-European *-i-eh2 Proto-Hellenic *-íā Ancient Greek -ία (-ía) Ancient Greek χυμείᾱ (khumeíā)bor. Arabic الْكِيمِيَاء (al-kīmiyāʔ)bor. Medieval Latin alchēmia ▲ Ancient Greek χυμείᾱ (khumeíā)influ. New Latin chēmia Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icus New Latin chēmicus English -al English chemical English photochemical From photo- + chemical.

Across languages

Translations

10 source translations are retained for this English entry.

  • Catalan: fotoquímic — relating to photochemistry
  • Finnish: fotokemiallinen — relating to photochemistry
  • French: photochimique — relating to photochemistry
  • Hungarian: fotokémiai — relating to photochemistry
  • Irish: fótaiceimiceach — relating to photochemistry
  • Italian: fotochimico — relating to photochemistry
  • Portuguese: fotoquímico — relating to photochemistry
  • Romanian: fotochimic — relating to photochemistry
  • Spanish: fotoquímico — relating to photochemistry
  • Tagalog: sugkapnayin — relating to photochemistry