
1) Circle formula part 2) Islamic 3) Moslem saint 4) Muslim saint 5) Part of a circle equation 6) Part of a circle formula 7) Precision infrared radiometer
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https://www.crosswordclues.com/clue/pir
[Alevism] In Alevism, a Pir is a rank of Dede. == See also == ...
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http://en.wikipedia.org/wiki/Pir_(Alevism)
[Sufism] Pir or Peer (پیر, literally `old [person]`) is a title for a Sufi master equally used in the nath tradition. They are also referred to as a Hazrat or Shaikh, which is Arabic for Old Man. The title is often translated into English as `saint` and could be interpreted as `Elder`. In Sufism a Pir`s role is to guide and instruct his ...
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http://en.wikipedia.org/wiki/Pir_(Sufism)
[Zoroastrianism] Pir (پیر) refers to a site of pilgrimage, typically one of the Zoroastrian faith, in Persian. Pirs range from localized devotional sites to major centers of worship. Among the most well-known pirs are the six mountain pir which can be found in and around the city of Yazd, Iran: Seti Pir, Pir-e Sabz, Pir-e Nāraki, Pir-e ...
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http://en.wikipedia.org/wiki/Pir_(Zoroastrianism)
India A Muslim spiritual guide
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http://www.britishempire.co.uk/glossary/p.htm

Passive Infra-Redâ€` PIR detectors identify the Infra-Red emitted by hot objects such as people and animals. They are used in burglar alarm systems, and to control the security lighting that many people have fitted outside their houses.
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Protein Information Resource
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http://www.encyclo.co.uk/local/20895

Parent In Room
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http://www.encyclo.co.uk/local/21662

Protocol Independent Routing
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http://www.encyclo.co.uk/visitor-contributions.php

parents in room
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http://www.noslang.com/dictionary/p/

acronym: precision infrared radiometer
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https://www.encyclo.co.uk/local/20002

Passive Infra Red. The name of the technology commonly used for movement sensors in intruder alarms and for outdoor security lights. Works by detecting the movement of heated object in its field of 'vision'.
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https://www.encyclo.co.uk/local/20845

Successor to the founder of a Sufi ( q.v. ) order or of a local subdivision of an order; in the Sufi tradition, a religious man considered to have mystic powers.
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https://www.photius.com/countries/pakistan/glossary/index.html

Passive InfraRed sensor alarm, set off by motion through its beam.
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https://www.versobooks.com/blogs/1715-urban-exploration-a-glossary
No exact match found.