osmosis

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UK/ɒzˈməʊ̯sɪs/UK/ɒsˈməʊ̯sɪs/US/ɑzˈmoʊ̯sɪs/US/ɑsˈmoʊ̯sɪs/

noun

The net movement of solvent molecules, usually water, from a region of lower solute concentration to a region of higher solute concentration through a partially permeable membrane.

“Near-synonym: serendipity”

Meanings

nounosmosis (countable and uncountable, plural osmoses)

plural osmoses

  1. countableuncountablechemistryThe net movement of solvent molecules, usually water, from a region of lower solute concentration to a region of higher solute concentration through a partially permeable membrane.
  2. countablefigurativelyuncountablePassive absorption or impartation of information, habits, etc.; the process of teaching or learning particular knowledge incidentally rather than consciously.

    Near-synonym: serendipity

    2 more examples

    I was reading about chickens, and I guess I learned about hawks through osmosis.

    At age fourteen, by a process of osmosis, of dirty jokes, whispered secrets and filthy ballads, Tristram learned of sex.

    1999, Neil Gaiman, Stardust (Perennial paperback), published 2001, pages 36–37

    Synonyms: serendipity

Synonyms & antonyms

nounPassive absorption or impartation of information, habits, etc.; the process of teaching or learning particular knowledge incidentally rather than consciously.

Origin

  1. Ancient Greekὠσμός“push, impulsion”
  2. Ancient Greekἔξω“outer, external”
  3. Ancient Greekἔνδον“within”
  4. Englishosmosis

From endosmose and exosmose, both coined by French physician Henri Dutrochet in 1826; from (respectively) Ancient Greek ἔνδον (éndon, “within”) and Ancient Greek ἔξω (éxō, “outer, external”), plus Ancient Greek ὠσμός (ōsmós, “push, impulsion”), from ὠθέω (ōthéō).

Full word history & related roots →

Translations

Arabic خَاصِّيَّة أُسْمُوزِيَّة, تَنَاضُح
  • خَاصِّيَّة أُسْمُوزِيَّة (ḵāṣṣiyya ʔusmūziyya, ḵāṣṣiyya ʔusmōziyya)movement of molecules across a membrane
  • تَنَاضُح (tanāḍuḥ)movement of molecules across a membrane
Bengali অভিস্রবণ
  • অভিস্রবণ (obhisrobon)movement of molecules across a membrane
Bulgarian осмоза
  • осмоза (osmoza)movement of molecules across a membrane
Catalan osmosi
  • osmosimovement of molecules across a membrane
Chinese Mandarin 渗透, 耳濡目染
  • 渗透 (shèntòu)movement of molecules across a membrane
  • 耳濡目染 (ěrrúmùrǎn)picking up knowledge accidentally
Czech osmóza
  • osmózamovement of molecules across a membrane
Danish osmose
  • osmosemovement of molecules across a membrane
Dutch osmose
  • osmosemovement of molecules across a membrane
Esperanto osmozo
  • osmozomovement of molecules across a membrane
Finnish osmoosi, through osmosis
  • osmoosimovement of molecules across a membrane
  • through osmosispicking up knowledge accidentally
  • samallapicking up knowledge accidentally
French osmose
  • osmosemovement of molecules across a membrane
German Osmose, but see Nachempfindung
  • Osmosemovement of molecules across a membrane
  • but see Nachempfindungpicking up knowledge accidentally
  • Nachvollziehungpicking up knowledge accidentally
  • Nachvollzugpicking up knowledge accidentally
  • Gefühlsansteckungpicking up knowledge accidentally
  • Hineindenkungpicking up knowledge accidentally
  • Gedankenansteckungpicking up knowledge accidentally
  • Gedankenübernahmepicking up knowledge accidentally
  • Ansichtenübernahmepicking up knowledge accidentally
Greek ώσμωση
  • ώσμωση (ósmosi)movement of molecules across a membrane
Hindi परासरण
  • परासरण (parāsaraṇ)movement of molecules across a membrane
Hungarian ozmózis
  • ozmózismovement of molecules across a membrane
Icelandic himnuflæði
  • himnuflæðimovement of molecules across a membrane
Indonesian osmosis
  • osmosismovement of molecules across a membrane
Irish osmóis
  • osmóismovement of molecules across a membrane
Italian osmosi
  • osmosimovement of molecules across a membrane
Japanese 浸透
  • 浸透 (shintō)movement of molecules across a membrane
Korean 삼투
  • 삼투 (samtu)movement of molecules across a membrane
Māori rerewai
  • rerewaimovement of molecules across a membrane
Persian اسمز
  • اسمز (osmoz)movement of molecules across a membrane
Polish osmoza, osmoza
  • osmozamovement of molecules across a membrane
  • osmozapicking up knowledge accidentally
Portuguese osmose, osmose
  • osmosemovement of molecules across a membrane
  • osmosepicking up knowledge accidentally
Russian о́смос
  • о́смос (ósmos)movement of molecules across a membrane
Spanish ósmosis
  • ósmosismovement of molecules across a membrane
Swedish osmos
  • osmosmovement of molecules across a membrane
Tagalog pananagos
  • pananagosmovement of molecules across a membrane
Tamil சவ்வூடு பரவல், பிரசாரணம்
  • சவ்வூடு பரவல் (cavvūṭu paraval)movement of molecules across a membrane
  • பிரசாரணம் (piracāraṇam)movement of molecules across a membrane
Thai การออสโมสิส
  • การออสโมสิสmovement of molecules across a membrane
Ukrainian о́смос
  • о́смос (ósmos)movement of molecules across a membrane
Vietnamese sự thẩm thấu
  • sự thẩm thấumovement of molecules across a membrane

Rhymes & wordplay

Rhymes with osmosis

All rhymes →
Cite this entry
APA

osmosis. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/osmosis

MLA

“osmosis.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/osmosis. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “osmosis,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/osmosis.

Source: osmosis on Wiktionary, CC BY-SA 4.0.