10-letter words containing r, i, d, o
- siderocyte — an erythrocyte that contains iron in forms other than hematin.
- siderolite — stony-iron meteorite.
- siderostat — a telescopic device for reflecting the light of a star in a constant direction, the chief component of which is a plane mirror turned by a clock mechanism to correct for the rotation of the earth.
- sidestroke — a stroke in which the body is turned sideways in the water, the hands pull alternately, and the legs perform a scissors kick.
- sisterhood — the state of being a sister.
- sit around — be idle, lounge about
- slide over — to cross by or as if by sliding
- smoldering — to burn without flame; undergo slow or suppressed combustion.
- sobersided — solemn or grave in disposition, attitude, character, etc.; serious-minded.
- sobersides — a humorless or habitually serious person.
- socdoliger — a conclusive argument, a hard blow
- sociodrama — a method of group psychotherapy in which each patient assumes and dramatizes a variety of roles, usually focusing on problems and conflicts arising in group situations.
- soda niter — a white or transparent mineral, sodium nitrate, NaNO 3 , used chiefly as a fertilizer and in the manufacture of sulfuric and nitric acids and potassium nitrate.
- soft drink — a beverage that is not alcoholic or intoxicating and is usually carbonated, as root beer or ginger ale.
- solar wind — an emanation from the sun's corona consisting of a flow of charged particles, mainly electrons and protons, that interacts with the magnetic field of the earth and other planetary bodies.
- solderings — any parts which have been soldered together
- soldier on — a person who serves in an army; a person engaged in military service.
- soldiering — a person who serves in an army; a person engaged in military service.
- solid word — a word written or printed as single word without a hyphen
- solidarily — characterized by or involving community of responsibilities and interests.
- solidarism — the social theory of the solidarity of interests
- solidarist — a person who adheres to solidarism
- solidarity — union or fellowship arising from common responsibilities and interests, as between members of a group or between classes, peoples, etc.: to promote solidarity among union members.
- solidarize — to unite or come together; become solidified.
- soricident — having shrewlike teeth
- sororicide — a person who kills his or her sister.
- sourdeline — a type of bagpipe
- spermatoid — resembling sperm.
- spheroidal — pertaining to a spheroid or spheroids.
- spiderwork — a thing which has the appearance of a spider's web
- spiderwort — any plant of the genus Tradescantia, having blue, purple, or rose-colored flowers.
- spoondrift — spindrift.
- sporadical — (of similar things or occurrences) appearing or happening at irregular intervals in time; occasional: sporadic renewals of enthusiasm.
- sporicidal — a substance or preparation for killing spores.
- springwood — the part of an annual ring of wood, characterized by large, thin-walled cells, formed during the first part of the growing season.
- stadia rod — rod (def 19).
- stadia-rod — a stick, wand, staff, or the like, of wood, metal, or other material.
- stockrider — a cowboy.
- stridulous — Also, stridulant. making or having a harsh or grating sound.
- stringendo — to be performed with increasing speed
- strip bond — a bond that has been stripped into its principal certificate and interest coupons, each part to be sold separately.
- strip down — remove paint or wallpaper from
- strobiloid — resembling a strobila
- stromateid — any of numerous small marine fishes of the family Stromateidae, having a laterally compressed body and an expanded muscular esophagus, often lined with teeth.
- sub-editor — A sub-editor is a person whose job it is to check and correct articles in newspapers or magazines before they are printed.
- subjoinder — something subjoined, as an additional comment.
- subordinal — of, relating to, or ranked as a suborder.
- sudatorium — a hot-air bath for inducing sweating.
- superoxide — a compound containing the univalent ion O 2 − .
- swing door — a door that swings open on being pushed or pulled from either side and then swings closed by itself.