Noun

(uncountable) Diligent inquiry or examination to seek or revise facts, principles, theories, applications, etc.; laborious or continued search after truth.

* {{quote-magazine, date=2012-01

, author=Philip E. Mirowski , title=Harms to Health from the Pursuit of Profits , volume=100, issue=1, page=87 , magazine= citation , passage=In an era when political leaders promise deliverance from decline through America’s purported preeminence in scientific research , the news that science is in deep trouble in the United States has been as unwelcome as a diagnosis of leukemia following the loss of health insurance.}}

(countable) A particular instance or piece of research.

* Macaulay

The dearest interests of parties have frequently been staked on the results of the researches of antiquaries.

* 1747 , The Scots magazine (volume 9, page 567)

The first step I took in this so necessary a research , was to examine the motives, the justice, the necessity and expediency of the revolution

Noun

(en noun)

The act of observing, and the fact of being observed.

*

, title=(The Celebrity), chapter=5 , passage=But Miss Thorn relieved the situation by laughing aloud,

* {{quote-magazine, year=2012, month=March-April, author=(Jeremy Bernstein)

, volume=100, issue=2, page=146, magazine=(American Scientist) , title= A Palette of Particles , passage=The physics of elementary particles in the 20th century was distinguished by the observation of particles whose existence had been predicted by theorists sometimes decades earlier.}}

The act of noting and recording some event; or the record of such noting.

A remark or comment.

* Shakespeare

That's a foolish observation .

* Alexander Pope

To observations which ourselves we make / We grow more partial for the observer's sake.

A judgement based on observing.

Performance of what is prescribed; adherence in practice; observance.

* Jeremy Taylor

We are to procure dispensation or leave to omit the observation of it in such circumstances.