mesencephalon
/ˌmɛzənˈsɛfələn/
"mesencephalon" is a 13-letter English headword indexed on PlainSpell.
The verdict
“mesencephalon” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 13
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A part of the brain located rostral to the pons and caudal to the thalamus and the basal ganglia, composed of the tectum (dorsal portion) and the tegmentum (ventral portion).
Corpus desk
Index EN-mesencephalon · mesencephalon · English
mesencephalon · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MEGA 13 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "M" 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.
| Property | Value |
|---|---|
| Headword | mesencephalon |
| Language | English |
| Part of speech | Noun |
| IPA | /ˌmɛzənˈsɛfələn/ |
| Letters | 13 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “mesencephalon” in English
Rare enough to double-check
mesencephalon is uncommon English outside the top frequency list, classed as anoun, transcribed /ˌmɛzənˈsɛfələn/. Rarity is why readers land here mid-draft. Gloss: "A part of the brain located rostral to the pons and caudal to the thalamus and the basal ganglia, composed of the tectum (dorsal portion) and the tegmentum (ventral portion).".
Zero misspellings are on record for mesencephalon in our index, a sign its spelling follows regular English conventions. Our dataset records no confusable match here, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From mes- + encephalon. The correct English form is mesencephalon, spelled M-E-S-E-N-C-E-P-H-A-L-O-N.
Definition
- 1A part of the brain located rostral to the pons and caudal to the thalamus and the basal ganglia, composed of the tectum (dorsal portion) and the tegmentum (ventral portion).
Etymology
From mes- + encephalon.
Synonyms
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.