צִנּוּר (tsinnûwrtsin-noor'noun|masculinepipe)
[Heb] צִנּוּר, צִנּׄור ETCBC: צִנֹּור‎ (subs|water-tunnel) OSHL: r.cw.ab TWOT: 1942a GK: H7562
Derivation: from an unused root perhaps meaning to be hollow;
Strong's: a culvert
KJV: gutter, water-spout.