Disposal
来自Big Physics
wiktionary
dispose + -al.
etymonline
disposal (n.)
1620s, "power to make use of, right to dispose of or control;" see dispose + -al (2). Meaning "a disposing" (of a daughter by marriage, of money by a will, of an estate by sale, etc.) is from 1650s; of waste material, from c. 1960, originally in medical use.
