Standard Lemma guide

meso-

prefix · 13 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

prefix

Meaning 1

Middle or centre in location/position.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Examples

  • Mesoamerica
  • mesohepatectomy
  • mesoscaphe

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

prefix

Meaning 2

Between a macro- scale and micro- scale in scope or analysis.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Examples

  • mesoeconomics
  • mesoevolution
  • mesometeorology

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

prefix

Meaning 3

Medium in size.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Examples

  • mesobrowser
  • mesocavern
  • mesohabitat

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

prefix

Meaning 4

Between.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Examples

  • mesochannel
  • mesoclitic
  • mesolayer

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

prefix

Meaning 5

Intermediate between two properties or characteristics.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Examples

  • mesocratic
  • mesognathous
  • mesohydrophyte

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

prefix

Meaning 6

Referring to the mesentery.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Topics: anatomy, medicine, sciences

Examples

  • mesoappendix
  • mesoduodenum
  • mesogastrium

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

prefix

Meaning 7

Mesial in location, position, or direction: towards the midline of the body.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Topics: anatomy, medicine, sciences

Examples

  • mesoanterior
  • mesomedial
  • meson

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

prefix

Meaning 8

Normal, average, or typical.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Examples

  • mesochronic
  • mesocrystal
  • mesokurtosis

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

prefix

Meaning 9

The forward side of a tooth.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Topics: dentistry, medicine, sciences

Examples

  • mesocone
  • mesoflexus
  • mesoloph

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

prefix

Meaning 10

The middle of a time period, or medium in duration.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Examples

  • mesocenozoic
  • mesocratic
  • Mesolithic

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

prefix

Meaning 11

Quasi or partial.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Examples

  • mesocarnivore
  • mesobilirubin
  • mesoparasite

Meaning relationships

Synonyms: none provided

Antonyms: none provided

12

prefix

Meaning 12

Moderate, medium in quantity.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Examples

  • mesoendemic
  • mesoeutrophic
  • mesohaline

Meaning relationships

Synonyms: none provided

Antonyms: none provided

13

prefix

Meaning 13

Designating an achiral member of a group of diastereoisomers that has at least one chiral member.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Topics: chemistry, natural-sciences, physical-sciences

Examples

  • meso-tartaric acid
  • mesolytic

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *me Proto-Indo-European *dheh1-? Proto-Indo-European *-dhe Proto-Indo-European *médhi Proto-Indo-European *-os Proto-Indo-European *médhyos Proto-Hellenic *métsos Ancient Greek μέσος (mésos)der. English meso- From Ancient Greek μέσος (mésos, “middle”). Doublet of mid- and medio-.

Across languages

Translations

11 source translations are retained for this English entry.

  • Arabic: وَسْط (wasṭ) — prefix meaning middle
  • Arabic: وَسْطِيّ (wasṭiyy) — prefix meaning middle
  • Catalan: meso- — prefix meaning middle
  • French: méso- — prefix meaning middle
  • Galician: meso- — prefix meaning middle
  • German: meso- — prefix meaning middle
  • Greek: μεσο- (meso-) — prefix meaning middle
  • Irish: méisi- — prefix meaning middle
  • Italian: meso- — prefix meaning middle
  • Portuguese: meso- — prefix meaning middle
  • Spanish: meso- — prefix meaning middle