13-letter words containing d, i, s, a, o
- prostaglandin — Biochemistry. any of a class of unsaturated fatty acids that are involved in the contraction of smooth muscle, the control of inflammation and body temperature, and many other physiological functions.
- prosthodontia — the branch of dentistry that deals with the restoration and maintenance of oral function by the replacement of missing teeth and other oral structures by artificial devices.
- pseudo-social — relating to, devoted to, or characterized by friendly companionship or relations: a social club.
- pseudoaquatic — not aquatic but indigenous to moist regions.
- pseudoclassic — falsely or spuriously classic.
- psychodynamic — Psychology. any clinical approach to personality, as Freud's, that sees personality as the result of a dynamic interplay of conscious and unconscious factors.
- quadraphonics — high-fidelity sound reproduction involving signals transmitted through four different channels.
- quadrifarious — having four parts
- quadriphonics — quadraphony.
- radiationless — not emitting or producing radiation
- radio compass — a radio receiver with a directional antenna for determining the bearing of the receiver from a radio transmitter.
- radio silence — the absence, usually deliberately maintained, of radio transmissions
- radio station — station (def 8).
- radiopacities — opaque to radiation; visible in x-ray photographs and under fluoroscopy (opposed to radiotransparent).
- radius vector — Mathematics. the length of the line segment joining a fixed point or origin to a given point.
- raison d'etat — a purely political reason for governmental action, based on the national interest and often violating principles of justice.
- raison d'etre — reason or justification for being or existence: Art is the artist's raison d'être.
- reconsolidate — to bring together (separate parts) into a single or unified whole; unite; combine: They consolidated their three companies.
- redesignation — an act of designating.
- rhodesian man — an extinct Pleistocene human whose cranial remains were found at Kabwe, in Zambia: formerly in some classifications Homo rhodesiensis but now considered archaic Homo sapiens.
- robben island — a small island in South Africa, 11 km (7 miles) off the Cape Peninsula: formerly used by the South African government to house political prisoners
- rogation days — Usually, rogations. Ecclesiastical. solemn supplication, especially as chanted during procession on the three days (Rogation Days) before Ascension Day.
- rose mandarin — (in the Chinese Empire) a member of any of the nine ranks of public officials, each distinguished by a particular kind of button worn on the cap.
- sacerdotalism — the system, spirit, or methods of the priesthood.
- sacerdotalize — to submit (something) to sacerdotalism
- sadomasochism — interaction, especially sexual activity, in which one person enjoys inflicting physical or mental suffering on another person, who derives pleasure from experiencing pain.
- sadomasochist — interaction, especially sexual activity, in which one person enjoys inflicting physical or mental suffering on another person, who derives pleasure from experiencing pain.
- saint leonard — a city in S Quebec, in E Canada: suburb of Montreal.
- san ildefonso — a town in central Spain, near Segovia: termed the “Spanish Versailles” for its 18th-century palace (La Granja) treaty 1800.
- sandwich coin — a coin having a layer of one metal between outside layers of another, as a quarter with a layer of copper between layers of silver.
- sandwich loaf — a loaf of the type of soft white sliced bread often used to make sandwiches
- santo domingo — a republic in the West Indies, occupying the E part of the island of Hispaniola. 19,129 sq. mi. (49,545 sq. km). Capital: Santo Domingo.
- sarcodinians' — belonging or pertaining to the protist phylum Sarcodina, comprising protozoa that move and capture food by forming pseudopodia.
- scarfed joint — a lapped joint between two pieces of timber made by notching or grooving the ends and strapping, bolting, or gluing the two pieces together
- scratch video — the technique or practice of recycling images from films or television to make collages
- sectionalized — divided into sections
- sedimentation — the deposition or accumulation of sediment.
- selenous acid — a colorless, transparent, crystalline powder, H2SeO3, soluble in water and used as a reagent
- self-anointed — to rub or sprinkle on; apply an unguent, ointment, or oily liquid to.
- self-donation — an act or instance of presenting something as a gift, grant, or contribution.
- self-ordained — to invest with ministerial or sacerdotal functions; confer holy orders upon.
- semi-nomadism — a member of a people or tribe that has no permanent abode but moves about from place to place, usually seasonally and often following a traditional route or circuit according to the state of the pasturage or food supply.
- semiautomated — partially automated.
- semidominance — incomplete dominance.
- senza sordino — a musical direction to remove or play without the mute or (on the piano) with the sustaining pedal pressed down
- serodiagnosis — a diagnosis involving tests on blood serum or other serous fluid of the body.
- sex addiction — an addiction to sexual activity
- sex education — Sex education is education in schools on the subject of sexual activity and sexual relationships.
- shadow boxing — to make the motions of attack and defense, as in boxing, as a training or conditioning procedure.
- shadowcasting — the enhancement of images by the casting of shadows