15-letter words starting with op
- open admissions — a policy of admitting applicants to an institution, especially a university, regardless of previous academic record or grades.
- open convention — a party convention at which delegates are free to vote for the candidate of their choice.
- open enrollment — open admissions.
- open government — the doctrine that all government business should be open to regulation and scrutiny by the public
- open one's eyes — the organ of sight, in vertebrates typically one of a pair of spherical bodies contained in an orbit of the skull and in humans appearing externally as a dense, white, curved membrane, or sclera, surrounding a circular, colored portion, or iris, that is covered by a clear, curved membrane, or cornea, and in the center of which is an opening, or pupil, through which light passes to the retina.
- open university — higher education by correspondence
- open your mouth — If you say that someone does not open their mouth, you are emphasizing that they never say anything at all.
- open-cut mining — mining by excavating from the surface
- open-ended loan — An open-ended loan is an extension of credit where money can be borrowed when you need it, and paid back on an ongoing basis, such as a credit card.
- open-pit mining — a method of mining, usually for metallic ores, in which the waste and ore are completely removed from the sides and bottom of a pit which gradually becomes an enormous canyonlike hole
- open-pollinated — (of a flower) pollinated without human agency.
- opencast mining — mining by excavating from the surface
- opening balance — the amount of money in an account at the start of an accounting period
- opening batsman — a player who bats the first ball in cricket
- openmouthedness — the state or condition of being filled with amazement and wonder
- operating cycle — the period of time between starting a business and making a profit
- operating table — table on which surgery is performed
- operationalised — Simple past tense and past participle of operationalise.
- operationalized — Simple past tense and past participle of operationalize.
- operations room — a room from which all the operations of a military, police, or other disciplined activity are controlled
- ophthalmologist — a doctor of medicine specializing in ophthalmology.
- ophthalmophobia — the fear of being stared at
- ophthalmoplegia — Paralysis of the muscles within or surrounding the eye.
- ophthalmoscopes — Plural form of ophthalmoscope.
- ophthalmoscopic — Of, pertaining to or using an ophthalmoscope.
- opinionatedness — The state or condition of being opinionated.
- opisthognathous — having receding jaws.
- opposite number — counterpart; equivalent: New members with an interest in folk art will find their opposite numbers in the association's directory.
- opposite prompt — the offstage area to the right as one faces the audience. Abbreviation: O.P.
- opposition hold — a particular way of holding rock in mountain-climbing
- oppositionality — Quality of being oppositional.
- opprobriousness — The state or condition of being opprobrious.
- optical printer — a film printer used in making optical effects, consisting basically of a camera that photographs the image with special lenses to enlarge, reduce, distort, etc., and a projector that transfers the image to the print stock, as distinguished from a contact printer.
- optical pumping — a method for increasing the number of atoms or molecules occupying higher energy levels by irradiating them with light of the proper frequencies to raise them to those levels.
- optical scanner — the process of interpreting data in printed, handwritten, bar-code, or other visual form by a device (optical scanner or reader) that scans and identifies the data.
- optical storage — optical disk drive
- optical tooling — the technique of establishing precise reference lines and planes by means of telescopic sights, especially for the purpose of aligning machinery, machine-shop work, etc.
- optoelectronics — the branch of electronics dealing with devices that generate, transform, transmit, or sense optical, infrared, or ultraviolet radiation, as cathode-ray tubes, electroluminescent and liquid crystal displays, lasers, and solar cells.
- opus anglicanum — fine embroidery, esp of church vestments, produced in England c.1200–c.1350; characterized by the rich materials used, esp silver gilt thread
On this page, we collect all 15-letter words starting with OP. It’s easy to find right word with a certain length. It is the easiest way to find 15-letter word that beginning with OP to use in Scrabble or Crossword puzzles.