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spectrophotometer
spectropolarimeter
spectroscope
spectroscopic analysis
spectroscopy
spectrum
specula
specular
speculate
speculation
speculative
speculator
speculum
speculum metal
sped
speech
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speculate

spec·u·late [ spékyə làyt ] (past and past participle spec·u·lat·ed, present participle spec·u·lat·ing, 3rd person present singular spec·u·lates)


verb 
Definition:
 
1. transitive and intransitive verb conjecture: to form a conjecture on the basis of incomplete facts or information

2. intransitive verb consider possibilities: to think over possibilities

3. intransitive verb make risky deals for profit: to engage in financial transactions such as commodity trading that have an element of risk, especially in the short term, with the hope of making a profit

4. intransitive verb take risks: to take risks in an attempt to achieve something or get some benefit

[Late 16th century. < Latin speculat-, past participle of speculari "observe, spy out" < specere "look at"]
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