decisive

a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.

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World English Dictionary

decisive (dɪˈsaɪsɪv)

—*adj*
1.	influential; conclusive: a decisive argument
2.	characterized by the ability to make decisions, esp quickly; resolute

de'cisively

—*adv*

de'cisiveness

—n

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

decisive

1610s, see decide + -ive.

Example sentences

But permanent relocation is a more decisive process.

It's consequences are many, decisive, and pervasive.

Being decisive in the face of complexity and ambiguity is important.

And in fact one finding out where tiny maggots came from was a decisive step

forward in realizing where life comes from.

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Matching Quote

"The primary imperative for women who intend to assume a meaningful and decisive role in today's social change is to begin to perceive themselves as having an identity and personal integrity that has as strong a claim for being preserved intact as that of any other individual or group."

-Margaret Adams