Noun

(en noun)

The act of experimenting; practice by experiment.

(sciences) A set of actions and observations, performed to verify or falsify a hypothesis or to research a causal relationship between phenomena.

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

, author=Robert M. Pringle , title=How to Be Manipulative , volume=100, issue=1, page=31 , magazine= citation , passage=As in much of biology, the most satisfying truths in ecology derive from manipulative experimentation . Tinker with nature and quantify how it responds.}}

Noun

(en-noun)

The tendency to attract.

The feeling of being attracted.

* , chapter=5

, title= Mr. Pratt's Patients , passage=When you're well enough off so's you don't have to fret about anything but your heft or your diseases you begin to get queer, I suppose. And the queerer the cure for those ailings the bigger the attraction . A place like the Right Livers' Rest was bound to draw freaks, same as molasses draws flies.}}

An event or location that has a tendency to attract visitors.

(chess) The sacrifice of pieces in order to expose the enemy king.