alkaloid
/ˈæl.kə.lɔɪd/
"alkaloid" is a 8-letter English headword indexed on PlainSpell.
The verdict
“alkaloid” is uncommon English (frequency #56,573 among 3,931 “A” headwords), classed as a noun. The kind of spelling people second-guess.
- #56,573
- frequency rank, English
- 3,931
- “A” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Any of many organic (often heterocyclic) bases that occur in nature and often have medicinal properties.
Corpus desk
Index EN-alkaloid · alkaloid · English
alkaloid · rank #56,573 · 0 variants · 0 confusables
- FREQ-RARE #56,573
- LEN-LONG 8 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,931
- PHOTO-FINISH aliphatic
Nearest frequency peer: aliphatic (-1 rank slots)
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.
Long-tail ranks near “alkaloid”
Sparse band: bars invert rank so rarer forms read shorter
- adrenergic
adrenergic
43,431 corpus weight
- aliphatic
aliphatic
43,429 corpus weight
- alkaloid
alkaloid
43,428 corpus weight
- Amano
Amano
43,425 corpus weight
- Amendola
Amendola
43,424 corpus weight
- amide
amide
43,423 corpus weight
What this shows Long-tail view: where “alkaloid” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | alkaloid |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈæl.kə.lɔɪd/ |
| Letters | 8 |
| Frequency rank | #56,573 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “alkaloid” in English
Rare enough to double-check
alkaloid is uncommon English at frequency #56,573 among 3,931 “A” headwords, classed as anoun, transcribed /ˈæl.kə.lɔɪd/. Rarity is why readers land here mid-draft. Gloss: "Any of many organic (often heterocyclic) bases that occur in nature and often have medicinal properties.".
No generated misspelling entries exist for alkaloid in our index, which points to an orthography that plays by predictable English rules. Our confusable-pair dataset has no match for it, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From alkali + -oid. Compare French alcaloïde. The correct English form is alkaloid, spelled A-L-K-A-L-O-I-D.
Definition
- 1Any of many organic (often heterocyclic) bases that occur in nature and often have medicinal properties.
Recorded use
Wiktionary examplesThese source excerpts show how alkaloid appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The Aspidosperma alkaloids are the largest group of indole alkaloids.
Xanthosine, the initial substrate of purine alkaloid synthesis, is supplied by at least four different pathways […]
Etymology
From alkali + -oid. Compare French alcaloïde.
Synonyms
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); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
How do you spell "alkaloid"?
What does "alkaloid" mean?
How do you pronounce "alkaloid"?
What is the origin of the word "alkaloid"?
Is PlainSpell free to use?
Similar English words by spelling shape
Same letter count and similar misspelling depth for "alkaloid", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 8 letters (nearest by frequency rank).