carreau = pane (window-pane, window-glass)

I believe this is the term you are looking for:


HEre are some references:

Untitled
... et beaucoup d'énèrgie. Mais avec son lance-pierres, il vient de casser le carreau
de la fenêtre du voisin qui, furieux, sonne chez vous. Que lui dites-vous ...
www.chez.com/antineus/html/130003.htm

Untitled
... include: When referring to windows: la fenêtre - window.
le vitre / le carreau - window pane. appui ...
web.ukonline.co.uk/b.birch/art.htm

Petanque.org: Postcards
... That's a carreau! (a 'carreau' in French also means a 'window-pane') <-Prev Next->
Card number: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ...
www.petanque.org/pictures/postcards.php3?n=145

Document sans titre
... piova, canalettu - gutter Carreau (de fenêtre): vetru di finestra - window-pane
Carreau de faïence: tumetta, chjappella, lastra - tile Carrelage: lastracu ...
www.adecec-corsica.com/adecec-net/lexiques/maison3.html


Regards.