Spacer

A pressure containing peice of equipment used to connect and provide separation between other peices of equipment.
Found on http://www.encyclo.co.uk/visitor-contributions.php

Spacer

(Window) Strips of material used to separate multiple panes of glass within the windows.
Found on https://energy.gov/eere/energybasics/articles/glossary-energy-related-terms

Spacer

[Asimov] Spacers were the fictional first humans to emigrate to space in Isaac Asimov`s Foundation and related Robot and Empire series. In these stories, about a millennium thereafter, they severed political ties with Earth, and embraced low population-growth and extreme longevity (with lifespans reaching 400 years) as a means for a high st...
Found on http://en.wikipedia.org/wiki/Spacer_(Asimov)

spacer

a device which keeps the sub-conductors of a bundle in a given geometrical configuration
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=466-11-01

Spacer

A hub placed between reels on rewinders to keep the reels in the proper position to feed into, or take up from, a synchronizer. (Film Editing)
Found on http://www.filmland.com/glossary/Dictionary.html#A

Spacer

A metal cylinder with a flat plate at one end and a hole through the center, used between reels on the spindle of a rewind to space out the reels the same distance as the gangs of a synchronizer. Although it is a little shorter, in a pinch you can use cores as spacers
Found on https://www.encyclo.co.uk/local/21112

spacer

component of a cell made of insulating material intended to maintain the spacing between plates of opposite polarity or between the plate pack and the case
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=482-02-10

spacer

device made of insulating material intended to maintain the spacing between electrodes
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=111-15-44

spacer

member which separates two adjacent objects to prevent their contact NOTE 1 - In a coil or cable, the spacer is usually located between wires, winding layers or sectioning coils to prevent their thermal and electrical contact. NOTE 2 - It is often formed from a glass-fibre-reinforced-plastics (GFRP), ceramics etc.
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=815-06-46

spacer

Type: Term Pronunciation: spā′sĕr Definitions: 1. A device attached to a metered-dose inhaler that aids delivery of inhaled medications. Synonyms: extension tube, holding chamber
Found on http://www.medilexicon.com/medicaldictionary.php?t=83200
No exact match found