A dry lake or playa whose bed contains abundant alkali salts.

(construction) a method of interlocking metal panels in which one panel edge is folded back on top of itself and the other panel is folded under, after which the two panels are hooked together.

(music) a minor key with the notes A♭, B♭, C♭, D♭, E♭, F♭, and G♭

(music) A tone one semitone lower than E, between D and E. / (music) A key or other mechanism for producing an E-flat. / (music) The key of E-flat major.

The property of two (or more) elements whereby they affect each other equally. / The property of possessing two opposite characteristics in equal strength.

Having a flat bottom.

(medicine) Lack of emotion, or of apparent emotion.

simple past tense and past participle of flat-foot

A physical condition of the feet where the sole of the foot is in full contact with the ground, either because the arches have collapsed or because they never developed.

Having feet which are flat. / (of humans) Having the specific physical condition of flat feet. / Holding firmly and maintaining a decision; standing one's ground.