BREECH

'Breech' may refer to:

★ Buttocks, the lower part of the human abdomen

★ A breech birth

★ In a breech-loading weapon, the ''breech'' refers to the rear portion of the barrel which opens for ammunition loading, as well as the system used to load the round

★ The lower part of a pulley block

★ The penetration of a boiler where exhaust gases leave it

★ Breeches, certain types of trousers; this term is older than the derived meaning 'butt' of the word breech