De or het organisme?

The correct Dutch article is:

het organisme

  • English: organism
  • Plural: de organismes / organismen
  • Diminutive: het organismetje
Rule Words ending in -isme: almost always het. See the rule

How to use organisme

the organismhet organisme
this organismdit organisme
that organismdat organisme
our organismons organisme
your organismjouw organisme
every organismelk organisme
which organism?welk organisme?
a big organismeen groot organisme
the big organismhet grote organisme
the organism (plural)de organismes

Dutch words ending in organisme

macro-organisme | micro-organisme | controleorganisme | modelorganisme | zeeorganisme | microorganisme | testorganisme

In compound words, the last part decides the article. See the rule

Plural, diminutive and translation: WikiWoordenboek (Dutch Wiktionary), license CC BY-SA 4.0.