9-letter words containing s, i, a, l, o
- corydalis — any erect or climbing plant of the N temperate genus Corydalis, having finely-lobed leaves and spurred yellow or pinkish flowers: family Fumariaceae
- coseismal — of or designating points at which earthquake waves are felt at the same time
- costalgia — Pain in the ribs, or the costal muscles.
- cristobal — seaport in Panama, at the Caribbean entrance to the Panama Canal: part of the city of Colón
- crossrail — a horizontal slat forming part of the back of a chair.
- crotalism — a type of poisoning caused by ingestion of plants of the genus Crotalaria
- cursorial — adapted for running
- custodial — Custodial means relating to keeping people in prison.
- daffodils — Plural form of daffodil.
- dalhousie — 9th Earl of, title of George Ramsay. 1770–1838, British general; governor of the British colonies in Canada (1819–28)
- daltonism — colour blindness, esp the confusion of red and green
- de valois — Dame Ninette (niːˈnɛt). original name Edris Stannus. 1898–2001, British ballet dancer and choreographer, born in Ireland: a founder of the Vic-Wells Ballet Company (1931), which under her direction became the Royal Ballet (1956)
- decapolis — a league of ten cities, including Damascus, in the northeast of ancient Palestine: established in 63 bc by Pompey and governed by Rome
- deisolate — to remove from isolation.
- diabolism — activities designed to enlist the aid of devils, esp in witchcraft or sorcery
- diabolist — Theology. action aided or caused by the devil; sorcery; witchcraft. the character or condition of a devil. a doctrine concerning devils. a belief in or worship of devils.
- diagonals — Plural form of diagonal.
- dialogism — a deduction with one premise and a disjunctive conclusion
- dialogist — a person who writes or takes part in a dialogue
- dialogues — Plural form of dialogue.
- diastolic — (of blood pressure) indicating the arterial pressure during the interval between heartbeats.
- diglossia — the widespread existence within a society of sharply divergent formal and informal varieties of a language each used in different social contexts or for performing different functions, as the existence of Katharevusa and Demotic in modern Greece.
- dilations — Plural form of dilation.
- diplomats — Plural form of diplomat.
- disallows — Third-person singular simple present indicative form of disallow.
- disavowal — a disowning; repudiation; denial.
- discoidal — Having the flat, circular shape of a disc or a quoit.
- dishallow — to profane; desecrate.
- dislocate — to put out of place; put out of proper relative position; displace: The glacier dislocated great stones. The earthquake dislocated several buildings.
- disposals — Plural form of disposal.
- disproval — The act of disproving; disproof.
- dissocial — disinclined to or unsuitable for society; unsocial.
- doornails — Plural form of doornail.
- dovetails — Plural form of dovetail.
- dropsical — of, like, or affected with dropsy.
- elaiosome — an oil-rich body on seeds or fruits that attracts ants, which act as dispersal agents
- epilators — Plural form of epilator.
- episcopal — Of a bishop or bishops.
- episodial — Episodic.
- erosional — Pertaining to erosion.
- estradiol — A major estrogen produced in the ovaries.
- etioplast — (biology) A chloroplast that has never been exposed to light.
- fail-soft — pertaining to or noting facilities built into a system, as in an automobile or a computer, for continuing operations on an interim basis and probably with reduced efficiency, if parts of the system fail.
- falchions — Plural form of falchion.
- favillous — (obsolete) Of or pertaining to ashes.
- filaceous — composed of threads
- fissional — Of or pertaining to fission.
- flagitous — (archaic) wicked, reprehensible.
- flamingos — Plural form of flamingo.
- flatirons — Plural form of flatiron.