mollusca
"mollusca" is a 8-letter English headword indexed on PlainSpell.
The verdict
“mollusca” is uncommon English (frequency #63,807 among 4,057 “M” headwords), classed as a noun. The kind of spelling people second-guess.
- #63,807
- frequency rank, English
- 4,057
- “M” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Molluscs considered as a group.
Corpus desk
Index EN-mollusca · mollusca · English
mollusca · rank #63,807 · 0 variants · 0 confusables
- FREQ-RARE #63,807
- LEN-LONG 8 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 4,057
- PHOTO-FINISH monarchical
Nearest frequency peer: monarchical (+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 “mollusca”
Sparse band: bars invert rank so rarer forms read shorter
- Millbrook
Millbrook
36,202 corpus weight
- mincing
mincing
36,200 corpus weight
- Mohave
Mohave
36,196 corpus weight
- mollusca
mollusca
36,194 corpus weight
- monarchical
monarchical
36,193 corpus weight
- mouthpieces
mouthpieces
36,187 corpus weight
What this shows Long-tail view: where “mollusca” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | mollusca |
| Language | English |
| Part of speech | Noun |
| Letters | 8 |
| Frequency rank | #63,807 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “mollusca” in English
Rare enough to double-check
mollusca is uncommon English at frequency #63,807 among 4,057 “M” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Molluscs considered as a group.".
No misspelling variants are generated for mollusca 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.
No explicit etymology string is stored for this entry, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is mollusca, spelled M-O-L-L-U-S-C-A.
Definition
- 1Molluscs considered as a group.
Recorded use
Wiktionary examplesThese source excerpts show how mollusca appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The mollusca are animals with soft bodies, enveloped in a muscular skin, and usually protected by a univalve or bivalve shell. […] The univalve mollusca are encephalous, or furnished with a distinct head; they have eyes and tentacula, and the mouth is armed with jaws.
Turning for a very brief space to animals: on the land there are some hermaphrodites, as land-mollusca and earth-worms; but these all pair.
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 "mollusca"?
What does "mollusca" mean?
What language does "mollusca" come from?
Is PlainSpell free to use?
Similar English words by spelling shape
Same letter count and similar misspelling depth for "mollusca", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 8 letters (nearest by frequency rank).