13-letter words containing a, u, d, i, t, o
- sex education — Sex education is education in schools on the subject of sexual activity and sexual relationships.
- soda fountain — a counter, as in a restaurant or drugstore, at which sodas, ice cream, light meals, etc., are served.
- sodium borate — borax1 .
- solidungulate — having a single, undivided hoof on each foot, as a horse.
- subdelegation — a group or body of delegates: Our club sent a delegation to the rally.
- subindication — the act or process of subindicating
- subordination — the act of placing in a lower rank or position: The refusal to allow women to be educated was part of society's subordination of women to men.
- subordinative — placed in or belonging to a lower order or rank.
- subsidization — to furnish or aid with a subsidy.
- superdiplomat — a highly skilled or powerful diplomat, a high-ranking diplomat
- superdominant — submediant.
- superordinate — of higher degree in condition or rank.
- tax deduction — an expenditure that is deducted from taxable income.
- tetrafluoride — a fluoride containing four fluorine atoms.
- thoracic duct — the main trunk of the lymphatic system, passing along the spinal column in the thoracic cavity, and conveying a large amount of lymph and chyle into the venous circulation.
- to play cupid — If you say that someone is playing cupid, you mean that they are trying to bring two people together to start a romantic relationship.
- trade council — a central council composed of local trade unions.
- un-negotiated — to deal or bargain with another or others, as in the preparation of a treaty or contract or in preliminaries to a business deal.
- uncategorized — to arrange in categories or classes; classify.
- unchlorinated — not chlorinated; not treated with chlorine
- uncomplicated — to make complex, intricate, involved, or difficult: His recovery from the operation was complicated by an allergic reaction.
- unconditional — not limited by conditions; absolute: an unconditional promise.
- unconstrained — forced, compelled, or obliged: a constrained confession.
- uncoordinated — of the same order or degree; equal in rank or importance.
- underreaction — to react with less than the expected or appropriate emotion.
- undirectional — of, relating to, or indicating direction in space.
- undissociated — not dissociated, especially into ions or into simpler molecules.
- undoctrinaire — a person who does not subscribe to a particular doctrine or theory; a free thinker
- undomesticate — to make wild
- undulationist — a subscriber to the theory that light is transmitted as waves
- unmetabolised — not metabolised
- unmetabolized — not metabolized
- unobliterated — to blot out or render undecipherable (writing, marks, etc.); efface.
- unopinionated — obstinate or conceited with regard to the merit of one's own opinions; conceitedly dogmatic.
- untraditional — of or relating to tradition.
- wolffian duct — a duct, draining the mesonephros of the embryo, that becomes the vas deferens in males and vestigial in females.
- zero altitude — the height at which the atmospheric pressure is 610.5Pa