hypothalamus

Name: hypothalamus, English Word Data
Creator: Wiktionary
License: https://creativecommons.org/licenses/by-sa/4.0/

noun

By PlainSpell · According to Wiktionary data (CC BY-SA) · analyzed September 3, 2026

The verdict

“hypothalamus” has 19 generated spelling variants in the English index at frequency #43,198. The variants make it a useful spelling check.

#43,198
frequency rank, English: 2,646
“H” headwords: 19
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A region of the forebrain located below the thalamus, forming the basal portion of the diencephalon, and functioning to regulate body temperature, some metabolic processes and governing the autonom...

Corpus desk

Index EN-hypothalamus · hypothalamus · English

hypothalamus · rank #43,198 · 19 variants · 0 confusables

FREQ-MID #43,198
LEN-MEGA 12 letters
VOW-5 5 vowels
CONFUS-0 No pairs
VAR-HIGH 19 variants
BOOK-MID 2,646
PHOTO-FINISH IEA

Nearest frequency peer: IEA (+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.

honeysuckle

56,810
houseboat

56,807
Houthi

56,806
hypothalamus

56,803
IEA

56,802
imperium

56,797

What this shows “hypothalamus” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Key facts for hypothalamus
Property	Value
Headword	hypothalamus
Language	English
Part of speech	Noun
Letters	12
Frequency rank	#43,198
Misspellings tracked	19
Confusable pairs	0
Source	Wiktionary (kaikki.org)

Frequency seat of misspelling magnet “hypothalamus”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).hypothalamuslands here:

#43,198

#1#100#1K#10K#100K

← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “IEA” (#43,199), “Houthi” (#43,195), “houseboat” (#43,194). Among 2,646 “H” headwords, “hypothalamus” is #43,198. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 19 spelling variants around hypothalamus, anoun. Corpus frequency is #43,198 among 2,646 “H” headwords. Dominant gloss: "A region of the forebrain located below the thalamus, forming the basal portion of the diencephalon, and functioning to regulate body temperature, some metabolic processes and governing the autonom...".

Our generated misspelling index lists 19 likely wrong-spelling variants for hypothalamus, with forms such as "hhypothalamus", "hpyothalamus", and "hyopthalamus". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. No close-neighbour confusable shows up for this headword in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From hypo- + thalamus. The correct English form is hypothalamus, spelled H-Y-P-O-T-H-A-L-A-M-U-S.

Definition

1
A region of the forebrain located below the thalamus, forming the basal portion of the diencephalon, and functioning to regulate body temperature, some metabolic processes and governing the autonomic nervous system.

Recorded use

Wiktionary example

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

To avoid catastrophe, the brain has its trusty control centre, the hypothalamus, which tells the body to cool itself by sweating or to warm itself by shivering.

Etymology

From hypo- + thalamus.

This word in other languages

hipotálamo(Español)hypothalamus(Français)Hypothalamus(Deutsch)

Common misspellings

Also misspelled as:

hhypothalamus
hpyothalamus
hyopthalamus
hypohtalamus
hypotahlamus
hypothaalmus
hypothalammus
hypothalamsu
hypothalamuss
hypothalaums
hypothallamus
hypothalmaus
hypothhalamus
hypothlaamus
hypotthalamus
hyppothalamus
hyptohalamus
hyypothalamus
yhpothalamus

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of hypothalamus - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

Edit distance from "hypothalamus"

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 "hypothalamus"?

"hypothalamus" is spelled H-Y-P-O-T-H-A-L-A-M-U-S.

What does "hypothalamus" mean?

As a noun, "hypothalamus" means: A region of the forebrain located below the thalamus, forming the basal portion of the diencephalon, and functioning to regulate body temperature, some metabolic processes and governing the autonom...

What are common misspellings of "hypothalamus"?

Common misspellings include "hhypothalamus", "hpyothalamus", "hyopthalamus", "hypohtalamus", "hypotahlamus". The correct spelling is "hypothalamus".

What is the origin of the word "hypothalamus"?

From hypo- + thalamus. See the full etymology section above for more details.

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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "hypothalamus", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 12 letters (nearest by frequency rank).

endangerment#43,137 disinfection#43,113 obsolescence#43,289 obstetrician#43,290

Similar misspelling depth

Headwords with a similar count of attested misspellings (19 here; floor ≥5).

extrajudicial19 variants neuromuscular19 variants contractually19 variants breaststroke19 variants