13-letter words containing x, e, r, o, s
- over-exercise — bodily or mental exertion, especially for the sake of training or improvement of health: Walking is good exercise.
- overexpansion — the act or process of expanding.
- overextension — to extend, reach, or expand beyond a proper, safe, or reasonable point: a company that overextended its credit to diversify.
- phenoxy resin — any of a class of resins derived from polyhydroxy ethers
- posix threads — (programming) (Pthreads) A POSIX standard API that defines a set of C programming language types, functions and constants for creating and manipulating pre-emptive threads. The standard's full name is "POSIX.1c, Threads extensions (IEEE Std 1003.1c-1995)". Implementations are available on many Unix-like POSIX-conformant operating systems such as FreeBSD, NetBSD, OpenBSD, GNU/Linux, Mac OS X and Solaris as well as DR-DOS and Microsoft Windows. Pthreads was designed and implemented in the PART Project (POSIX / Ada-Runtime Project).
- protected sex — sexual activity during which a condom is used to protect against sexually transmitted disease and pregnancy.
- rotation-axes — a process of replacing the axes in a Cartesian coordinate system with a new set of axes making a specified angle with and having the same origin as the original axes.
- roxburghshire — a historic county in SE Scotland.
- saddle oxford — saddle shoe.
- self-exposure — the act of exposing, laying open, or uncovering: the sudden exposure of objects that were hidden under the blanket.
- sex chromatin — Barr body.
- soapbox derby — a race between children in homemade racing carts
- spermatotoxic — spermotoxic.
- spermatotoxin — spermotoxin.
- start of text — (character) (STX) Mnemonic for ASCII 2.
- tax inspector — a government official whose job is to make sure that people and companies are paying the right amount of tax
- time exposure — a long exposure in which the shutter is opened and closed by hand or by a mechanism other than the automatic mechanism of the shutter.
- underexposure — inadequate exposure, as of photographic film.
- visual cortex — the portion of the cerebral cortex of the brain that receives and processes impulses from the optic nerves.
- vortex street — a regular stream of vortices or parallel streams of vortices carried downstream by the flow of a fluid over a body. These are sometimes made visible by vapour condensation as in the vortex trails from the wing tips of an aeroplane
- xenoestrogens — Plural form of xenoestrogen.
- zf expression — (programming) (After Zermelo Fränkel set theory). David Turner's name for list comprehension.
- zoopraxiscope — an early type of motion-picture projector, designed by Eadweard Muybridge, in which the images were drawings or photographs placed along the rim of a circular glass plate, the shutter was a rotating opaque disk with radial slots, and a limelight source was used.