Noun

(en noun)

The act of arranging.

The manner of being arranged.

A collection of things that have been arranged.

A particular way in which items are organized.

* {{quote-magazine, year=2013, month=July-August, author= Fenella Saunders

, title= Tiny Lenses See the Big Picture, magazine=(American Scientist) , passage=The single-imaging optic of the mammalian eye offers some distinct visual advantages. Such lenses can take in photons from a wide range of angles, increasing light sensitivity. They also have high spatial resolution, resolving incoming images in minute detail. It’s therefore not surprising that most cameras mimic this arrangement .}}

(in the plural) Preparations for some undertaking.

An agreement.

(music) An adaptation of a piece of music for other instruments, or in another style.

Noun

(en noun)

someone who moderates

* Walton

Angling was a moderator of passions.

# an arbitrator or mediator

# the chair or president of a meeting etc.

the person who presides over a synod of a Presbyterian Church

(physics) a substance (often water or graphite) used to decrease the speed of fast neutrons in a nuclear reactor and hence increase likelihood of fission

a device used to deaden some of the noise from a firearm, although not to the same extent as a suppressor or silencer.

(UK) An examiner at Oxford and Cambridge universities.

* '>citation

(Ireland) At the University of Dublin, either the first (senior) or second (junior) in rank in an examination for the degree of Bachelor of Arts.

A mechanical arrangement for regulating motion in a machine, or producing equality of effect.