more really useful prefixes + suffixes, esp. for bio + med students

haemo- Gr., blood

e.g. haemophiliac (a person whose body has trouble forming blood clots), haemorrhage (bleeding)

halo- Gr., salt

e.g. halotolerance (adaptation of living organisms to conditions of high salinity) , halophile (a type of extremophile organisms that thrive in high salt concentrations

hepa- Gr., liver

e.g. hepatitis (inflamation of the liver), hepatic (circulation to liver)

histo- Gr., tissue

e.g. histology (study of tissue structure), histogenesis (formation of tissue)

hyalo- Gr., glassy, clear

e.g. hyalomere (clear periphery of a blood platelet), hyaloplasm (clear fluid of cytoplasm)

hypo- Gr., under

e.g. hypoglycemia (low blood sugar), hyposensitivity (undersensitivity) 

-itis L., inflammation

e.g. peritonitis (inflammation of the peritoneum), arthritis (inflammation of joints)

leio- L., smooth

e.g. leioderma (nonspecific term for smooth, shiny skin), leiomyofibroma (a benign tumor from smooth muscle)


Les microbes extrêmophiles sont des micro-organismes parfaitement adaptés à des conditions extrêmes pour l’homme. Certains sont dits thermophiles (hautes températures), d’autres psychrophiles (basses températures), halophiles (forte concentration en sel), acidophiles (pH faible), etc. Ils vivent dans des milieux particuliers, comme les abysses, les geysers, les calottes glacières… Voici donc sulfolobus, pyrolobus fumarii et thermoplasma !

(prière de ne pas les nourrir, même s’ils ont l’air gentils)

Cakile maritima
Family: Brassicaceae (Cabbage)
Genus: Cakile
Species: C. maritima
Common Name: Sea Rocket
Location: NT516859
Habitat: As the name suggests this plant usually grows next to the sea. Most often found at the top of the beach where grasses such as Marram (Ammophila arenaria) and Sea Lyme (Leymus arenarius) begin to pop up.
Collector: Ewan Cole
Authority: Scop.

Why is this crystal pink? It’s got microbes inside. This salt crystal is from Searles Lake, California, where salt levels are so high that few animals can live there. But halophilic (“salt-loving”) microbes called archaea breed in such abundance they can turn the saltwater—and the dried salt crystals—pink!

Some microbes can remain alive inside salt crystals for months or even years, in tiny drops of liquid called fluid inclusions. In one extreme case, scientists revived 34,000-year-old archaea found in a salt crystal. Fluid inclusions have been found in meteorites and Mars rocks—raising questions about whether similar microbes could survive underground on other planets.

Find more extraordinary stories in the exhibition, Life at the Limits, open now. 

Image: AMNH/R.Mickens