10-letter words containing o, p, s, a, l
- blastopore — the opening of the archenteron in the gastrula that develops into the anus of some animals
- bolan pass — a mountain pass in W central Pakistan through the Brahui Range, between Sibi and Quetta, rising to 1800 m (5900 ft)
- box staple — a socket for holding the end of a lock bolt when the door is closed.
- breastplow — a cultivator moved forward by a person pressing the chest against a crossbar.
- calliopsis — coreopsis
- calotypist — a person who produces photographs using the calotype process
- campstools — Plural form of campstool.
- cap pistol — a toy gun using caps to imitate the sound of a real pistol.
- captiously — In a captious manner.
- clampdowns — Plural form of clampdown.
- clapboards — Plural form of clapboard.
- clipboards — Plural form of clipboard.
- clistocarp — cleistothecium.
- cloudscape — a picturesque formation of clouds
- codswallop — If you describe something that someone has just said as codswallop, you mean that you think it is nonsense.
- collapsars — Plural form of collapsar.
- collapsing — Present participle of collapse.
- collapsion — (archaic) collapse.
- complaints — A statement that a situation is unsatisfactory or unacceptable.
- composable — to make or form by combining things, parts, or elements: He composed his speech from many research notes.
- cospectral — (mathematics) isospectral.
- cytoplasms — Plural form of cytoplasm.
- cytoplasts — Plural form of cytoplast.
- despotical — of, relating to, or of the nature of a despot or despotism; autocratic; tyrannical.
- deutoplasm — nutritive material in a cell, esp the yolk in a developing ovum
- dipetalous — bipetalous.
- diplomates — Plural form of diplomate.
- diplophase — the diploid part of an organism's life cycle.
- diplospeak — the polite and placatory language usually associated with diplomats
- disepalous — having two sepals.
- disposable — designed for or capable of being thrown away after being used or used up: disposable plastic spoons; a disposable cigarette lighter.
- dollarship — the fact of being denominated in dollars
- dollarspot — a turf disease caused by the fungus Sclerotinia or related genera, characterized by small, brown to straw-colored, round patches of dead grass that gradually spread and coalesce.
- doorplates — Plural form of doorplate.
- dorsal lip — the dorsal marginal region of the blastopore, which acts as a center of differentiation: as cells move through this region to the interior of the embryo during gastrulation, they acquire the ability to induce the overlying ectoderm to develop into a variety of tissues.
- drosophila — a fly of the genus Drosophila, especially D. melanogaster, used in laboratory studies of genetics and development.
- emplastron — a plaster containing a balm or medication
- episomally — In an episomal manner.
- epistolary — Relating to or denoting the writing of letters or literary works in the form of letters.
- escapology — The study or art of escaping from a constriction, e.g. rope, handcuffs, etc.
- esophageal — Pertaining to the esophagus.
- etioplasts — Plural form of etioplast.
- exoplanets — Plural form of exoplanet.
- false pond — a mirage.
- flagperson — A gender-neutral term for someone who uses a flag, especially as a form of signalling.
- flashpoint — Also, flashing point. Physical Chemistry. the lowest temperature at which a liquid in a specified apparatus will give off sufficient vapor to ignite momentarily on application of a flame.
- floodlamps — Plural form of floodlamp.
- flop sweat — a sudden heavy perspiration caused by embarrassment
- fool's cap — a traditional jester's cap or hood, often multicolored and usually having several drooping peaks from which bells are hung.
- footplates — Plural form of footplate.