Additament

something added; an addition.
historical examples

on the alternative that the additament takes on another additament, you will be embarr-ssed by a many-sided regress in infinitum.
the sarva-darsana-samgraha madhava acharya

an aqua regis may also be drawn from nitrous earths by the force of fire only, without the help of any additament.
elements of the theory and practice of chymistry, 5th ed. pierre joseph macquer

in case an additament be employed, what that is, and in what proportion it is added?
philosophical transactions of the royal society – vol 1 – 1666 various

corrosive sublimate may also be made only by mixing mercury with sea-salt, without any additament.
elements of the theory and practice of chymistry, 5th ed. pierre joseph macquer

milk left to itself, without the help of distillation, or any additament whatever, undergoes a sort of decomposition.
elements of the theory and practice of chymistry, 5th ed. pierre joseph macquer

by means of this additament he decompounded sal ammoniac, and by the experiment obtained the lights he wanted.
elements of the theory and practice of chymistry, 5th ed. pierre joseph macquer

we shall now have to add to the seed another supplementation by subsidiaries themselves requiring an additament.
the sarva-darsana-samgraha madhava acharya

Read Also:

Addition compound
(def 2).
Addition polymer
a polymer formed by the direct reaction of two or more monomers, and with no resulting water or other by-product.
Addition polymerization
see under (def 2). the act or process of forming a polymer or compound. the combination of many like or unlike molecules to form a more complex product of higher molecular weight, with elimination of water, alcohol, or the like (condensation polymerization) or without such elimination (addition polymerization) the conversion of one compound into another […]

Addition reaction
a reaction in which part of a compound is added to one end of a double or triple bond, while the rest adds to the other end, converting it, respectively, to a single or double bond.
Additional member system
noun a system of voting in which people vote separately for the candidate and the party of their choice. parties are allocated extra seats if the number of const-tuencies they win does not reflect their overall share of the vote see also proportional representation