Adrenalin or adrenaline?
adrenalin is a noun meaning “Alternative spelling of adrenaline”; adrenaline is a noun meaning “Epinephrine, the hormone and neurotransmitter”. Wiktionary gives them as spellings of the same word. In written English (wordfreq, 2021 data) adrenaline is about 5.6 times as common as adrenalin.
What is the difference between adrenalin and adrenaline?
| adrenalin | adrenaline | |
|---|---|---|
| Part of speech | noun | noun |
| Meaning | Alternative spelling of adrenaline | Epinephrine, the hormone and neurotransmitter Excitement; thrills |
| Example | none recorded | Some people bungee jump to feel alive through the surge of adrenaline |
| Forms | adrenalins | adrenalines |
| Pronunciation | not recorded | /əˈdɹɛnəlɪn/ |
| In writing | about once in every 2 million words | 3.3 times per million words |
Sources: adrenalin and adrenaline in the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Every current meaning of adrenalin and adrenaline
adrenalin
- 1
Alternative spelling of adrenaline
adrenaline
- 1
Epinephrine, the hormone and neurotransmitter
- 2
Excitement; thrills
Some people bungee jump to feel alive through the surge of adrenaline
Source: the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); obsolete, archaic, dialect and rare senses left out.
Which is more common, adrenalin or adrenaline?
adrenalin appears about once in every 2 million words; adrenaline 3.3 times per million words.
adrenalin about once in every 2 million wordsadrenaline 3.3 times per million words
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How many people search adrenalin vs adrenaline?
“adrenalin vs adrenaline” is searched about 50 times a month on Google and 10 on Bing in the United States. Google counts close variants of a query together (“adrenaline vs adrenalin”, “adrenalin or adrenaline”).
Sources: Google Ads keyword data through DataForSEO and Microsoft Advertising keyword data through DataForSEO, the average month from September 2025 to August 2026.