krebs
C1Scientific (Biology/Biochemistry); Rare as a surname in everyday English.
Definition
Meaning
The surname Krebs, most notably associated with the Krebs cycle in biochemistry, and less commonly as a rare English surname. Not a general-purpose English noun.
Primarily used as a proper noun. In science, it is part of the term "Krebs cycle" (citric acid cycle), a key metabolic pathway. It may also appear as a family name, often of German origin, and is the name of a genus of crayfish.
Linguistics
Semantic Notes
The word lacks a general, common meaning in English. Its primary semantic load is tied to the eponym (Sir Hans Krebs) and the biochemical process named after him. As a surname, it has no inherent meaning to English speakers.
Dialectal Variation
British vs American Usage
Differences
No significant difference in usage. The scientific term is identical. Pronunciation differences are minimal (see IPA).
Connotations
In a scientific context, strongly associated with biochemistry and cellular respiration. As a surname, neutral.
Frequency
Exceedingly rare in general discourse. Frequency is almost entirely confined to academic and scientific texts discussing metabolism.
Vocabulary
Collocations
Grammar
Valency Patterns
N/A - Primarily a proper noun used in fixed phrases.Vocabulary
Synonyms
Strong
Neutral
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “N/A”
Usage
Context Usage
Business
Virtually never used.
Academic
Exclusively used in biological and biochemical contexts to refer to the Krebs cycle.
Everyday
Extremely rare; only encountered if discussing biology or as a surname.
Technical
Central term in biochemistry and physiology.
Examples
By Part of Speech
verb
British English
- N/A
American English
- N/A
adverb
British English
- N/A
American English
- N/A
adjective
British English
- The Krebs cycle intermediates were analysed.
- Krebs-Henseleit solution is a buffer.
American English
- Krebs cycle activity is crucial.
- They used a Krebs-Ringer bicarbonate solution.
Examples
By CEFR Level
- This word is not typically taught at A2 level.
- This word is not typically used at B1 level outside specific science courses.
- The scientist studied the Krebs cycle in detail.
- Hans Krebs was a famous biochemist.
- A thorough understanding of the Krebs cycle is essential for advanced biochemistry.
- The lecture elucidated the regulatory mechanisms controlling flux through the Krebs cycle.
Learning
Memory Aids
Mnemonic
Think: "Krebs Creates Energy By Spinning" (for the Krebs cycle's role in energy production).
Conceptual Metaphor
N/A for the word itself. The Krebs cycle is often metaphorically described as a 'wheel', 'engine', or 'metabolic hub' of the cell.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with the Russian word 'рак' (rak - cancer/crayfish). 'Krebs' is not the English word for cancer; that is 'carcinoma' or 'cancer'.
Common Mistakes
- Mispronouncing it as /kɹiːbz/ (like 'creeps').
- Using it as a common noun (e.g., 'a krebs').
Practice
Quiz
What is the most common context for encountering the word 'Krebs' in English?
FAQ
Frequently Asked Questions
It is an English word only in the sense of being an adopted proper noun (an eponym) for the Krebs cycle and as a rare surname. It is not a common noun with a general meaning.
It is pronounced /kɹɛbz/, rhyming with 'webs'. The 'e' is short as in 'bed'.
The Krebs cycle, also known as the citric acid cycle or TCA cycle, is a series of enzyme-catalyzed chemical reactions that form a key part of aerobic respiration in cells, producing energy carriers (ATP, NADH).
No. By itself, without 'cycle', it will almost always be interpreted as a surname (e.g., 'Dr. Krebs'). It does not function as a standalone common noun.