Oral or written testimony taken outside of court, under oath, of a witness or a party to be used later as evidence or read in court.
Merriam-Webster Online Dictionary
deposition (noun)1.
an act of removing from a position of authority
2.
a) a testifying especially before a court
b) - declaration , specifically testimony taken down in writing under oath
c) out-of-court testimony made under oath and recorded by an authorized officer for later use in court , also a meeting at which such testimony is taken
3.
an act or process of - depositing
4.
something - deposited deposit
Merriam-Webster Online Thesaurus
deposition (noun)matter that settles to the bottom of a body of liquid
SYNONYMS:
deposition, dregs, grounds, precipitate, sediment, settlingsRELATED WORDS:
lees; ooze, silt, sludge; dross, slag, waste