refining

[ri-fahyn]

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verb (used with object)

to bring to a fine or a pure state; free from impurities: to refine metal, sugar, or petroleum.

to purify from what is coarse, vulgar, or debasing; make elegant or cultured.

to bring to a finer state or form by purifying.

to make more fine, subtle, or precise: to refine one's writing style.

verb (used without object)

to become pure.

to become more fine, elegant, or polished.

to make fine distinctions in thought or language.

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Refining is always a great word to know.

So is ninnyhammer. Does it mean:

a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.

a fool or simpleton; ninny.

Verb phrase

refine on/upon, to improve by inserting finer distinctions, superior elements, etc.: to refine on one's previous work.

Origin:
1575–85; re- + fine¹

Related forms

re·fin·a·ble, adjective

re·fin·er, noun

pre·re·fine, verb (used with object), pre·re·fined, pre·re·fin·ing.

self-re·fin·ing, adjective

su·per·re·fine, verb (used with object), su·per·re·fined, su·per·re·fin·ing.

un·re·fin·ing, adjective

WordNet

refining
noun
the process of removing impurities (as from oil or metals or sugar etc.)