15-letter words containing o, a, x
- secondary xylem — xylem derived from the cambium during secondary growth.
- sexual politics — the differences in the amount of power that male and female people have in a society or group
- sinistrodextral — moving or extending from the left to the right.
- soapbox oratory — public speaking typical of soapbox orators
- superexaltation — extreme or supreme exaltation; the act of superexalting; the process or condition of being superexalted
- superexcitation — the act of exciting.
- telamonian ajax — Ajax (def 1).
- thyroid extract — the powdered preparation made from the thyroid gland of certain animals, used to treat hypothyroidism
- toxin-antitoxin — a mixture of toxin and antitoxin, formerly used to induce active immunity against certain diseases, especially diphtheria.
- unexceptionable — not offering any basis for exception or objection; beyond criticism: an unexceptionable record of achievement.
- unextraordinary — beyond what is usual, ordinary, regular, or established: extraordinary costs.
- unix conspiracy — [ITS] According to a conspiracy theory long popular among ITS and TOPS-20 fans, Unix's growth is the result of a plot, hatched during the 1970s at Bell Labs, whose intent was to hobble AT&T's competitors by making them dependent upon a system whose future evolution was to be under AT&T's control. This would be accomplished by disseminating an operating system that is apparently inexpensive and easily portable, but also relatively unreliable and insecure (so as to require continuing upgrades from AT&T). This theory was lent a substantial impetus in 1984 by the paper referenced in the back door entry. In this view, Unix was designed to be one of the first computer viruses (see virus) - but a virus spread to computers indirectly by people and market forces, rather than directly through disks and networks. Adherents of this "Unix virus" theory like to cite the fact that the well-known quotation "Unix is snake oil" was uttered by DEC president Kenneth Olsen shortly before DEC began actively promoting its own family of Unix workstations. (Olsen now claims to have been misquoted.)
- uranium dioxide — a black, crystalline compound, UO 2 , insoluble in water, used in nuclear fuel rods, in ceramics, and pigments.
- vine phylloxera — a homopterous insect, Phylloxera vitifolia, typically feeding on vine juices
- wage indexation — the linking of wages to an index representing the cost of living, so that they are automatically adjusted up or down as that rises or falls
- withholding tax — that part of an employee's tax liability withheld by the employer from wages or salary and paid directly to the government.
- x-ray astronomy — the branch of astronomy that studies celestial objects by means of the x-rays emitted by them.
- x-ray diagnosis — diagnosis by means of an X-ray
- xenotransplants — Plural form of xenotransplant.
- xerographically — In a xerographic way; by xerography.
- xeroradiography — an x-ray utilizing a specially coated plate that allows a picture to be developed without the use of liquid chemicals.
- xylotypographic — involving or pertaining to xylotypography
- zermelo's axiom — axiom of choice.