This is the 8783rd most frequent French word.
biologiques
"Biologiques" means "biological" or "organic."
This sentence describes 'biologiques' as an adjective qualifying 'aliments,' indicating they are organic in nature.
Les aliments biologiques sont cultivés sans pesticides.
Organic foods are grown without pesticides.
Here, 'biologiques' functions as an adjective qualifying 'tests,' referring to their relevance to biology and living organisms.
Les tests biologiques aident à comprendre le fonctionnement du corps humain.
Biological tests help to understand the functioning of the human body.
In this context, 'biologiques' is used as an adjective to denote a direct natural familial relationship.