useless trivia: What Word Means: The Feather Grasses?

Questions

A medicine that hastens the emptying of the bowels is called a ________.?

A non-cancerous tumor is said to be _______.?

A thread used in surgery to tie a bleeding blood vessel is called a(n) _________.?

Carditis, affects the ________.?

Due to a lack of vitamin C, sailors used to contract this disease.?