What is a small, lightly armed patrol boat called?

What French word describes a small, tender filet of beef? What is a small folded pastry with a sealed edge called? What name belongs to both a Hawaiian hawk and a moon of Jupiter? What is a small hole or wound made by a sharp object called? What small nonflowering plant has types called hair cap and peat? A small one is called a cascade and a large one a cataract. What are they? What small oval gland at the base of the brain is called the "master gland"? What do you call a small grand piano about 5 feet long?