-idium

From Ancient Greek -ίδιον (-ídion, “diminutive”).

-idium n

1. Used to form a taxonomic name, usually of a genus, by suffixation to an existing genus name; a diminutive

From Ancient Greek -ίδιον (-ídion, “diminutive”).

-idium

1. Forms names of body parts, mainly of invertebrate animals, fungi and plants.
   1. (most common) reproductive organs, gametes, and early life stages

      basidium, spermidium, planidium, meconidium, glochidium

   2. sensory organs, mainly of arthropods

      scolopidium, ommatidium, (not arthropodan) sphaeridium

   3. various segments (arthropods) and functional processes

      stethidium, chilidium, limbidium, phyllidium, gonidium

   4. respiratory organs

      ctenidium, taenidium

2. (marginal) cellular compartments

   chromidium, cytoophidium

• gnathidium
• nephridium

• soredium
• isidium
• ascidium
• aecidium