Barracuda
Tang. The continuation of the blade of a knife into the handle.
Spinach
Tuna spine
Sea buckthorn, providing astringent orange berries which can be used in pies, jams and juices.
Foam
Draining spoon. This is generally a large kitchen spoon with holes in it useful for lifting foods from cooking liquor so that the liquid can drain away.
Sparkling, usually applied to wines.