Camber -
Camber (aerodynamics) - Wikipedia, the free encyclopedia
In aeronautics and aeronautical engineering, camber is the asymmetry between the top and the bottom surfaces of an aerofoil
Chamber -
cham·ber (chmbr)
n.
1. A room in a house, especially a bedroom.
2. A room where a person of authority, rank, or importance receives visitors.
3. chambers A room in which a judge may consult privately with attorneys or hear cases not taken into court.
4. chambers Chiefly British A suite of rooms, especially one used by lawyers.
5. A hall for the meetings of a legislative or other assembly.
6. A legislative or judicial body.
7. A board or council.
8. A place where municipal or state funds are received and held; a treasury.
9.
a. An enclosed space or compartment: the chamber of a pump; a compression chamber.
b. An enclosed space in the body of an organism; a cavity: the four chambers of the heart.
10.
a. A compartment in a firearm, as in the breech of a rifle or the cylinder of a revolver, that holds the cartridge in readiness for firing.
b. An enclosed space in the bore of a gun that holds the charge.
And to answer the original question, yes flaps do affect jets in a similar fashion to propeller aircraft, increasing lift & drag.