lysergic acid diethylamide

noun

"lysergic-acid-diethylamide" is a 24-letter English headword indexed on PlainSpell.

The verdict

“lysergic acid diethylamide” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
26
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A powerful synthetic hallucinogen.

Corpus desk

Index EN-lysergic-acid-diethylami · lysergic acid diethylamide · English

lysergic acid diethylamide · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 26 letters
  • VOW-11 11 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "L" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for lysergic acid diethylamide
PropertyValue
Headwordlysergic acid diethylamide
LanguageEnglish
Part of speechNoun
Letters26
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “lysergic acid diethylamide” in English

lysergic acid diethylamidefalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

lysergic acid diethylamide is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A powerful synthetic hallucinogen.".

lysergic acid diethylamide doesn't appear in our generated misspelling index, which points to an orthography that plays by predictable English rules. No confusable counterpart is on file for this word, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

No explicit etymology string is stored for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct English form is lysergic acid diethylamide, spelled L-Y-S-E-R-G-I-C- -A-C-I-D- -D-I-E-T-H-Y-L-A-M-I-D-E.

Definition

  1. 1
    A powerful synthetic hallucinogen.

Recorded use

Wiktionary example

These source excerpts show how lysergic acid diethylamide appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. As surely as that winter of 1970 turned to spring, lysergic acid deithylamide made its grand entrance into my life.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "lysergic acid diethylamide"?
"lysergic acid diethylamide" is spelled L-Y-S-E-R-G-I-C- -A-C-I-D- -D-I-E-T-H-Y-L-A-M-I-D-E.
What does "lysergic acid diethylamide" mean?
As a noun, "lysergic acid diethylamide" means: A powerful synthetic hallucinogen.
What language does "lysergic acid diethylamide" come from?
"lysergic acid diethylamide" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list