BASF LNT (Lean NOx Trap) technology removes NOx from diesel engine exhaust.
[edit on Wikidata] Sounding or urethral sounding is the medical use of probes called sounds to increase the inner diameter of the urethra and to locate obstructions in it. Sounds are also used to stretch the urethra in order to receive genital piercing. Urethral sounding and urethral play are also used to refer to this practice in a sexual context. Urethral play can involve the introduction of either soft or rigid items into the meatus of the penis (as well as farther in).
sounding board definition: The definition of a sounding board is a person you run things by, or someone you turn to for advice. (noun) An example of a sounding board is your mother, to whom you tell problems or ideas and have discussions with about those idea...