13-letter words containing opt
- acoustooptics — the branch of physics dealing with the relationships between acoustics and light
- active optics — a system to compensate for any deformation caused by gravity in the surface accuracy and alignment of the mirrors of an astronomical telescope by means of actuators that control the movable mirror supports
- antiapoptotic — (biology) Acting to prevent apoptosis.
- archaeopteryx — any of several extinct primitive birds constituting the genus Archaeopteryx, esp A. lithographica, which occurred in Jurassic times and had teeth, a long tail, well-developed wings, and a body covering of feathers
- coptic church — the ancient Christian Church of Egypt
- early adopter — a person who uses a new product or technology before it becomes widely known or used.
- electrooptics — the technology that deals with the production, control, and detection of light by electrical devices
- heteropterous — belonging or pertaining to the Heteroptera, in some classifications a suborder of hemipterous insects comprising the true bugs.
- hymenopterans — Plural form of hymenopteran.
- hymenopterous — belonging or pertaining to the Hymenoptera, an order of insects having, when winged, four membranous wings, and comprising the wasps, bees, ants, ichneumon flies, and sawflies.
- lepidopterans — Plural form of lepidopteran.
- lepidopterist — the branch of zoology dealing with butterflies and moths.
- lepidopterous — belonging or pertaining to the Lepidoptera, an order of insects comprising the butterflies, moths, and skippers, that in the adult state have four membranous wings more or less covered with small scales.
- magnetooptics — the branch of physics that deals with magnetooptic phenomena.
- open adoption — an arrangement in which contact is maintained or allowed between a child's adoptive and biological parents.
- opthalmoscope — Misspelling of ophthalmoscope.
- optic chiasma — a site at the base of the forebrain where the inner half of the fibers of the left and right optic nerves cross to the opposite side of the brain.
- optical bench — an apparatus, as a special table or rigid beam, for the precise positioning of light sources, screens, and optical instruments used for optical and photometric studies, having a ruled bar to which these devices can be attached and along which they can be readily adjusted.
- optical crown — an optical glass of low dispersion and relatively low refractive index. It is used in the construction of lenses
- optical drive — optical disk drive
- optical fiber — optical fibre
- optical fibre — (communications) (fibre optics, FO, US "fiber", light pipe) A plastic or glass (silicon dioxide) fibre no thicker than a human hair used to transmit information using infra-red or even visible light as the carrier (usually a laser). The light beam is an electromagnetic signal with a frequency in the range of 10^14 to 10^15 Hertz. Optical fibre is less susceptible to external noise than other transmission media, and is cheaper to make than copper wire, but it is much more difficult to connect. Optical fibres are difficult to tamper with (to monitor or inject data in the middle of a connection), making them appropriate for secure communications. The light beams do not escape from the medium because the material used provides total internal reflection. See also FDDI, Optical Carrier n, SONET.
- optical flint — an optical glass of high dispersion and high refractive index containing lead oxide. They are used in the manufacture of lenses, artificial gems, and cut glass
- optical glass — any of several types of high-quality, homogeneous, color-free glass, as flint or crown glass, having specified refractive properties, used in lenses and other components of optical systems.
- optical mouse — (hardware) Any kind of mouse that uses visible light or infrared to detect changes in its position.
- optical sound — sound recorded on and subsequently played back from an optical or photographic soundtrack, as opposed to a magnetic soundtrack.
- optical wedge — a wedge-shaped filter whose transmittance decreases from one end to the other: used as an exposure control device in sensitometry.
- optimizations — Plural form of optimization.
- plectopterous — of or relating to the order Plectoptera, containing mayflies
- prism diopter — a unit of prismatic deviation, in which the number one represents a prism that deflects a beam of light a distance of one centimeter on a plane placed normal to the initial direction of the beam and one meter away from the prism.
- spread option — spread (def 25b).
- stock options — an option giving the holder, usually an officer or employee, the right to buy stock of the issuing corporation at a specific price within a stated period.
- thysanopteran — Also, thysanopterous. belonging or pertaining to the insect order Thysanoptera, comprising the thrips.
- thysanopteron — thysanopteran.
- traded option — an option that can itself be bought and sold on a stock exchange
- trichopterist — a student of, or expert in, trichopteran insects
- trichopterous — belonging or pertaining to the insect order Trichoptera, comprising the caddisflies.
- visceroptosis — a downward displacement of the intestine
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