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15-letter words containing p, o, t, s

  • astrophotograph — a photograph of the heavenly bodies
  • astrophotometry — the measurement of the intensity of light of celestial objects.
  • astrophysically — from an astrophysical point of view
  • astrophysicists — Plural form of astrophysicist.
  • at pistol point — being under or using the threat of being shot
  • athletic sports — sports, esp track and field events, in which athleticism is required
  • atmospherically — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
  • autobiographers — Plural form of autobiographer.
  • autobiographies — Plural form of autobiography.
  • autoradiographs — Plural form of autoradiograph.
  • autostereoscopy — The display of stereoscopic images without the use of special viewing equipment.
  • autotransplants — Plural form of autotransplant.
  • backup software — (tool, software)   Software for doing a backup, often included as part of the operating system. Backup software should provide ways to specify what files get backed up and to where. It may include its own scheduling function to automate the procedure or, preferably, work with generic scheduling facilities. It may include facilities for managing the backup media (e.g. maintaining an index of tapes) and for restoring files from backups. Examples are Unix's dump command and Windows's ntbackup.
  • bacteriophagous — Pertaining to the predation and consumption of bacterium.
  • balanoposthitis — An inflammation of the glans penis and the prepuce.
  • bandstop filter — A bandstop filter is a filter designed to eliminate all frequencies within a band of frequencies.
  • baptism of fire — If someone who has just begun a new job has a baptism of fire, they immediately have to cope with very many severe difficulties and obstacles.
  • beat oneself up — to reproach oneself
  • biopsychologist — a field of psychology that deals with the effects of biological factors on behavior.
  • biostratigraphy — the examination of the ages of rock strata by using fossils
  • bits per second — (communications, unit)   (bps, b/s) The unit in which data rate is measured. For example, a modem's data rate is usually measured in kilobits per second. In 1996, the maximum modem speed for use on the PSTN was 33.6 kbps, rising to 56 kbps in 1997. Note that kilo- (k), mega- (M), etc. in data rates denote powers of 1000, not 1024.
  • blasting powder — a form of gunpowder made with sodium nitrate instead of saltpeter, used chiefly for blasting rock, ore, etc.
  • boiled potatoes — potatoes, usually peeled, cooked in boiling water
  • boustrophedonic — of or relating to lines written in opposite directions
  • box the compass — to name the compass points in order
  • brocken specter — an optical phenomenon sometimes occurring at high altitudes when the image of an observer placed between the sun and a cloud is projected on the cloud as a greatly magnified shadow.
  • brussels sprout — Brussels sprouts are vegetables that look like tiny cabbages.
  • capitalizations — Plural form of capitalization.
  • capitulationism — advocacy or approval of capitulation.
  • capitulationist — advocacy or approval of capitulation.
  • car transporter — a vehicle for carrying automobiles
  • cardinal points — the four main points of the compass: north, south, east, and west
  • carpometacarpus — a bone in the wing of a bird that consists of the metacarpal bones and some of the carpal bones fused together
  • cast a spell on — to put into, or as into, a trance
  • cast aspersions — If you cast aspersions on someone or something, you suggest that they are not very good in some way.
  • cast-iron plant — any of several plants belonging to the genus Aspidistra, of the lily family, native to eastern Asia, especially A. eliator, having large evergreen leaves often striped with white, and grown as a houseplant.
  • castanospermine — a substance obtained from the Australian chestnut or black bean tree
  • casters-up mode — [IBM, probably from slang belly up] Yet another synonym for "broken" or "down". Usually connotes a major failure. A system (hardware or software) which is "down" may be already being restarted before the failure is noticed, whereas one which is "casters up" is usually a good excuse to take the rest of the day off (as long as you're not responsible for fixing it).
  • castner process — a process for extracting sodium from sodium hydroxide, devised by Hamilton Young Castner (1858–98)
  • catastrophising — Present participle of catastrophise.
  • catastrophizing — Present participle of catastrophize.
  • cell disruption — Cell disruption is when a biological material becomes smaller to release proteins and enzymes.
  • cephalothoraxes — Plural form of cephalothorax.
  • charleston peak — a mountain in SE Nevada: highest peak in the Spring Mountains. 11,919 feet (3635 meters).
  • chemoautotrophs — Plural form of chemoautotroph.
  • chemopsychiatry — the study and application of chemical substances in psychiatry
  • chest protector — a protective pad worn over the chest by a catcher or umpire to shield the body from foul tips.
  • chief inspector — an officer of high rank in British police forces
  • circumscription — the act of circumscribing or the state of being circumscribed
  • claustrophobics — Plural form of claustrophobic.
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