(American spelling, idiomatic) Comedy that still manages to be funny in the face of, and in response to, a tragic or hopeless situation.

(uncountable) A subgenre of comedy and satire that deals with subjects that are believed to be serious or controversial, such as death, divorce, drug abuse, etc.

bad temper / irritability or surliness

Having a bad temper. / Irritable in a surly manner.

plural of humoral immunity

Humor that is presented with no change of expression; deadpan.

(ophthalmology, US) The clear gel that fills the eyeball between the lens and the retina.

(immunology) Immunity to infection due to antibodies, which circulate in the blood and lymph, and which are produced by B cells.

(idiomatic) A type of humor involving jokes about crude and sexual topics.

The quality of being humorsome.