13-letter words containing on
- aridification — the process by which a humid region becomes increasingly dry, as by climatic change or human interference with the ecology.
- aromatization — the conversion of aliphatic or alicyclic compounds to aromatic hydrocarbons.
- arthroconidia — Plural form of arthroconidium.
- articulations — Plural form of articulation.
- ascension day — the 40th day after Easter, when the Ascension of Christ into heaven is celebrated
- ascensiontide — the ten days from Ascension Day to the day before Whit Sunday
- aspirationals — Plural form of aspirational.
- assassination — to kill suddenly or secretively, especially a politically prominent person; murder premeditatedly and treacherously.
- assimilations — Plural form of assimilation.
- associational — relating to association or alliance or an association, alliance or affiliation
- assumptionist — Augustinian of the Assumption.
- astonishingly — causing astonishment or surprise; amazing: an astonishing victory; an astonishing remark.
- astonishments — Plural form of astonishment.
- astronautical — of or relating to astronautics or astronauts.
- at one's back — behind, esp in support or pursuit
- at one's best — in one's best mood, form, health, etc.
- atomic weapon — a weapon in which energy is provided by nuclear fission
- attributional — of or relating to the act of attributing
- auction block — Also called block. a platform from which an auctioneer sells: the old courthouse where slaves were sold from the auction block.
- auction house — a commercial company that specializes in selling items at auction
- auction pitch — a variety of all fours in which players bid to determine the trump or pitch.
- auctioneering — Present participle of auctioneer.
- augmentations — Plural form of augmentation.
- austin dobson — (Henry) Austin, 1840–1921, English poet, biographer, and essayist.
- authorisation — Alternative spelling of authorization.
- authorization — an authorizing or being authorized
- autochthonous — (of rocks, deposits, etc) found where they and their constituents were formed
- autodigestion — (biology) The digestion of tissue by enzymes produced by the organism itself.
- autoinfection — infection by a pathogenic agent already within the body or infection transferred from one part of the body to another
- automatonlike — Like an automaton; robotic.
- autonomically — autonomous.
- autooxidation — autoxidation.
- autoresponder — A program that automatically generates a set response to all messages sent to a particular e-mail address.
- averruncation — the act of averting or turning away
- aviation fuel — fuel used to power airplanes
- avocationally — in one's leisure time
- back emission — the secondary emission of electrons from an anode
- back mutation — the reversion of a mutant to the original phenotype
- back to front — If you are wearing something back to front, you are wearing it with the back of it at the front of your body. If you do something back to front, you do it the wrong way around, starting with the part that should come last.
- backbone site — A key Usenet, electronic mail and/or Internet site; one that processes a large amount of third-party traffic, especially if it is the home site of any of the regional coordinators for the Usenet maps. Notable backbone sites as of early 1993 include uunet and the mail machines at Rutgers University, UC Berkeley, DEC's Western Research Laboratories, Ohio State University and the University of Texas. Compare rib site, leaf site.
- backformation — Alternative spelling of back-formation.
- backwardation — the difference between the spot price for a commodity, including rent and interest, and the forward price
- bacterization — subjection to bacterial action
- badminton cup — a long refreshing drink of claret with soda water and sugar
- bail bondsman — an individual or firm that lends bail money to defendants awaiting trial
- balkanization — If you disapprove of the division of a country into separate independent states, you can refer to the Balkanization of the country.
- ballet lesson — a class in which ballet is taught
- balloon chuck — a lathe chuck having the form of a hollow hemisphere, for enclosing and holding small parts, as balance staffs of watches, so that only their ends are exposed.
- balloon clock — a bracket clock of the late 18th century, having a round dial on a short case with concave sides resting on bracket feet.
- balloon frame — a wooden building frame composed of machine-sawed scantlings fastened with nails, having studs rising the full height of the frame with the joists nailed to the studs and supported by sills or by ribbons let into the studs.