Standard Lemma guide

gelbstoff

noun · 2 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.

  • General-American, Received-Pronunciation: /ˈɡɛlpʃtɔf/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

The optically measurable component of dissolved organic matter in water, which primarily occurs naturally from tannin released from decaying detritus. As the amount of organic matter increases, it causes the water to appear green, yellow-green, and then brown.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: geography, hydrology, natural-sciences, oceanography

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Alternative letter-case form of gelbstoff.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Borrowed from German Gelbstoff (literally “yellow substance”) (coined by K. Kalle in a 1966 article: see the quotation), from German gelb (“amber, yellow”) (ultimately from Proto-Indo-European *ǵhelh3wós (“yellow”), from *ǵhelh3- (“green, yellow”) + *-wós (“suffix forming adjectives from verb stems”)) + German Stoff (“matter, stuff, substance”) (from Proto-West Germanic *stoppōn (“to close; to fill, stop up”), possibly ultimately from Proto-Indo-European *(s)tew- (“to hit; to push”)).

Across languages

Translations

3 source translations are retained for this English entry.

  • Arabic: المواد العضوية الملونة الذائبة — optically measurable component of dissolved organic matter in water
  • Chinese Mandarin: 有色可溶性有机物 (yǒusèkěróngxìngyǒujīwù) — optically measurable component of dissolved organic matter in water
  • German: Gelbstoff — optically measurable component of dissolved organic matter in water