13-letter words containing o, d, s, a
- antispasmodic — preventing or arresting spasms, esp in smooth muscle
- antisudorific — an antiperspirant.
- aphrodisiacal — having an aphrodisiac quality
- apostrophized — Simple past tense and past participle of apostrophize.
- arachnoiditis — an inflammation of the arachnoid membrane
- armored scale — any of a family (Diaspididae) of scale insects characterized by a hard, waxy secretion that covers the body: many armored scales are serious pests of trees and shrubs
- arsenous acid — a toxic white powder, As2O3, used to make other arsenic compounds, insecticides, and preservatives; white arsenic
- arundinaceous — resembling a reed
- as opposed to — You use as opposed to when you want to make it clear that you are talking about one particular thing and not something else.
- 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
- ascorbic acid — Ascorbic acid is another name for vitamin C.
- assembly code — assembly language
- assiduousness — constant; unremitting: assiduous reading.
- asteroid belt — the concentrations of asteroids that move around the sun mainly between the orbits of Mars and Jupiter
- astrodynamics — the study of the motion of natural and artificial bodies in space
- at a discount — below the regular price
- at loose ends — in an unsettled, disorganized, or confused condition
- aten asteroid — one of a small group of asteroids whose orbits cross that of the earth and whose semimajor axes are smaller than that of the earth.
- attested form — a linguistic form that can be shown to be in use or in written records
- audaciousness — Risky or daring behaviour.
- audiocassette — a cassette containing audiotape
- audiographics — audiographic teleconferencing
- austin dobson — (Henry) Austin, 1840–1921, English poet, biographer, and essayist.
- auto-destruct — self-destruct.
- autodidactism — Alternative form of autodidacticism.
- autodigestion — (biology) The digestion of tissue by enzymes produced by the organism itself.
- autoresponder — A program that automatically generates a set response to all messages sent to a particular e-mail address.
- autoschediasm — anything done with little forethought or preparation
- autoschediaze — to do or act with little forethought or preparation
- backgrounders — Plural form of backgrounder.
- bad godesberg — official name of Godesberg.
- bail bondsman — an individual or firm that lends bail money to defendants awaiting trial
- baker's dozen — thirteen
- balloon shade — a window shade that when raised is gathered into a series of puffy festoons created by inverted pleats in the fabric.
- banderilleros — Plural form of banderillero.
- bank discount — interest on a loan deducted from the principal amount when the loan is made and based on the loan's face value
- barbados aloe — a tropical aloe, Aloe barbadensis (or A. vera), of the lily family, having clusters of yellow flowers: its juice is used medicinally.
- basel accords — the three sets of rules, Basel I, Basel II, and Basel III, for regulating the banking industry, drawn up by the Basel Committee on Banking Supervision
- basidiomycete — any fungus of the phylum Basidiomycota (formerly class Basidiomycetes), in which the spores are produced in basidia. The group includes boletes, puffballs, smuts, and rusts
- basidiospores — Plural form of basidiospore.
- battlegrounds — Plural form of battleground.
- bay of gdańsk — a wide inlet of the Baltic Sea on the N coast of Poland
- beaked salmon — sandfish (def 2).
- beaked-salmon — sandfish (def 2).
- bearing sword — a large sword carried for its owner by a squire or servant because of its size.
- bildungsroman — a novel concerned with a person's formative years and development
- bits and bobs — Bits and bobs are small objects or parts of something.
- blood sausage — a kind of black sausage made from minced pork fat, pig's blood, and other ingredients
- blood-stained — stained with blood: a bloodstained knife.