13-letter words containing s, a, p, i, o
- spermatotoxin — spermotoxin.
- sphagnicolous — growing in moss
- sphagnologist — a person who studies sphagna
- spinal column — the series of vertebrae in a vertebrate animal forming the axis of the skeleton and protecting the spinal cord; spine; backbone.
- splenial bone — a small bone in the lower jaw of some animals, such as reptiles and birds
- spoiler party — a third political party formed to draw votes away from one of the two major parties, thus spoiling its chance of winning an election.
- spokesmanship — the office or skilful use of the office of spokesman
- spontaneities — the exhibiting of actions, impulses, or behaviour that are stimulated by internal processes
- sporting lady — a prostitute.
- sportscasting — the reporting of a sports event by radio or television broadcast.
- sportsmanlike — a man who engages in sports, especially in some open-air sport, as hunting, fishing, racing, etc.
- sportsmanship — the character, practice, or skill of a sportsman.
- spread option — spread (def 25b).
- spring-loaded — (of a machine part) kept normally in a certain position by a spring: a spring-loaded safety valve.
- springboarded — a flexible board, projecting over water, from which divers leap or spring.
- standing chop — (in an axemen's competition) a chop with the log standing upright
- standing crop — the totality of living things in an ecosystem at a given time.
- starting post — the upright pole marking the beginning of a racecourse
- state capitol — the building which houses the government of a state
- staying power — ability or strength to last or endure; endurance; stamina.
- step aerobics — a set of aerobic exercises designed to improve the cardiovascular system, which consists of stepping on and off a special box of adjustable height
- stereotypical — a process, now often replaced by more advanced methods, for making metal printing plates by taking a mold of composed type or the like in papier-mâché or other material and then taking from this mold a cast in type metal.
- stoppage time — In soccer and some other sports, stoppage time is the period of time that is added to the end of a game because play was stopped during the game as a result of, for example, injuries to players.
- stork parking — spaces reserved in a parking lot for cars driven by pregnant women or new mothers.
- stovepipe hat — a tall silk hat.
- stratospheric — relating to the stratosphere
- streptokinase — an enzyme used to dissolve blood clots.
- strip cartoon — A strip cartoon is the same as a comic strip.
- strophiolated — having strophioles, caruncles
- sub-political — of, relating to, or concerned with politics: political writers.
- subperiosteal — the normal investment of bone, consisting of a dense, fibrous outer layer, to which muscles attach, and a more delicate, inner layer capable of forming bone.
- subpopulation — the total number of persons inhabiting a country, city, or any district or area.
- subprime loan — A subprime loan is a loan with a higher interest rate, to borrowers who are a high credit risk.
- subtropically — in the subtropics
- supercautious — very or extremely cautious
- superdiplomat — a highly skilled or powerful diplomat, a high-ranking diplomat
- superdominant — submediant.
- superfetation — the fertilization of an ovum in a female mammal already pregnant.
- superloyalist — a fanatically loyal supporter (esp of a political party)
- supermajority — a majority that must represent some percentage more than a simple majority.
- supernational — tending to involve, or extending authority over, more than one nation; international; supranational.
- superordinary — that is superior to the ordinary
- superordinate — of higher degree in condition or rank.
- superorganism — a form of life composed of mutually interdependent parts that maintain various vital processes.
- superrational — beyond the scope or range of reason; intuitional.
- superreaction — a reverse movement or tendency; an action in a reverse direction or manner.
- superregional — involving many regions
- superromantic — exceptionally romantic
- supplantation — to take the place of (another), as through force, scheming, strategy, or the like.
- suppositional — the act of supposing.