18-letter words containing s

office of readings — the first of the canonical hours; matins
official solicitor — an officer of the Supreme Court of Judicature with special responsibilities for protecting the interests of persons under disability
offset lithography — offset (def 6).
oil of catechumens — holy oil used in baptism, the ordination of a cleric, the coronation of a sovereign, or in the consecration of a church.
old curiosity shop — a novel (1840–41) by Dickens.
old man of the sea — (in The Arabian Nights' Entertainments) an old man who clung to the shoulders of Sindbad the Sailor for many days and nights.
on a sticky wicket — in an awkward situation
on everyone's lips — being much discussed
on one's beam-ends — out of resources; destitute
on one's last legs — either of the two lower limbs of a biped, as a human being, or any of the paired limbs of an animal, arthropod, etc., that support and move the body.
on that/this score — You can use on that score or on this score to refer to something that has just been mentioned, especially an area of difficulty or concern.
on the credit side — You say on the credit side in order to introduce one or more good things about a situation or person, usually when you have already mentioned the bad things about them.
on the danger list — critically ill in hospital
on the strength of — the quality or state of being strong; bodily or muscular power; vigor.
on your conscience — If you have something on your conscience, you feel guilty because you know you have done something wrong.
one false move and — You use one false move to introduce the very bad or serious consequences which will result if someone makes a mistake, even a very small one.
one of sb's number — One of your number is a member of your group.
one's heart bleeds — used to express sympathetic grief, but often used ironically
one's native heath — the place of one's birth or childhood
one's number is up — one is finished; one is ruined or about to die
open heart surgery — surgery performed on the exposed heart while a heart-lung machine pumps and oxygenates the blood and diverts it from the heart.
open pandora's box — If someone or something opens Pandora's box or opens a Pandora's box, they do something that causes a lot of problems to appear that did not exist or were not known about before.
open-heart surgery — surgery performed on the exposed heart while a heart-lung machine pumps and oxygenates the blood and diverts it from the heart.
operating expenses — Operating expenses are expenses related to carrying out normal business activities.
operating software — software used in the operation of a computer system, typically by performing such tasks as memory allocation, job scheduling, and input/output control
operationalisation — Alternative spelling of operationalization.
operations manager — business director
optical disc drive — optical disk drive
optical disk drive — (hardware) (Or "optical disc drive", "optical storage") A generic term for any device that reads and/or writes optical media, i.e. compact discs, DVDs and/or Blu-ray discs or future media that uses light (from a small laser) to read data off a removable, rotating disk. At least one such drive is commonly installed in most personal computers to allow them to play and/or record audio and video media and load and store data such as program installers. The floppy disk has been replaced by optical media due to its vastly greater capacity, e.g. 50,000 megabytes for a dual-layer blu-ray disc compared with 1.5 megabytes for a floppy (over 30,000 times as much).
optical microscope — traditional magnifying instrument
optical soundtrack — the final soundtrack on a motion picture, which appears as a band of black and white serrations along a strip of film to the left of the composite print. Light is shined through the serrations and is converted to audible sound.
order of australia — an order awarded to Australians for outstanding achievement or for service to Australia or to humanity at large; established in 1975
order room service — When a customer orders room service, they ask for meals or drinks to be brought to their room.
organic solidarity — social cohesiveness that is based on division of labor and interdependence and is characteristic of complex, industrial societies.
oriental alabaster — alabaster (def 2).
oriental cat's-eye — a chatoyant variety of chrysoberyl, used as a gem.
oriental scops owl — any of a group of small owls having ear tufts and a whistling call, especially Otus scops (Old World scops owl) and O. sunia (Oriental scops owl)
oriental shorthair — any of a breed of domestic cat, similar to the Siamese but with greenish eyes and often a coat of a solid color
orientation course — induction into sth
orthopedic surgery — corrective operation on bones or joints
orthotungstic acid — an oxyacid acid of tungsten. Formula: H2WO4
oscillating engine — a steam engine having piston rods connected directly to the crankshaft and cylinders oscillating on trunnions.
oscillographically — By means of oscillography.
osteitis deformans — Paget's disease.
osteogenic sarcoma — osteosarcoma
osteoradionecrosis — bone tissue death induced by radiation.
out of one's depth — a dimension taken through an object or body of material, usually downward from an upper surface, horizontally inward from an outer surface, or from top to bottom of something regarded as one of several layers.
out of one's hands — no longer one's responsibility
out of one's skull — foolish; silly
outer automorphism — an automorphism that is not an inner automorphism.

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