15-letter words containing p, h, l
- copyright block — a block of four or more U.S. stamps that includes, in the selvage of the sheet, the copyright mark of the U.S. Postal Service.
- corn-leaf aphid — a green aphid, Rhopalosiphum maidis, widely distributed in the U.S.: a pest of corn and other grasses.
- couples therapy — a counseling procedure that attempts to improve the adaptation and adjustment of two people who form a conjugal unit.
- cricopharyngeal — of, relating to, or involving the cricoid cartilage and the pharynx.
- cryptographical — the science or study of the techniques of secret writing, especially code and cipher systems, methods, and the like. Compare cryptanalysis (def 2).
- crystallography — the science concerned with the formation, properties, and structure of crystals
- cushion capital — a capital, used in Byzantine, Romanesque, and Norman architecture, in the form of a bowl with a square top
- cytotrophoblast — the thickened, inner part of the mammalian placenta nearest to the fetus, covering the chorion during early pregnancy
- dadchelor party — a party primarily attended by men and held to honour and present gifts to a prospective father
- decipherability — to make out the meaning of (poor or partially obliterated writing, etc.): to decipher a hastily scribbled note.
- deep-etch plate — an offset printing plate with an intaglio image filled with a substance that attracts ink to make it planographic.
- delta hepatitis — a severe form of hepatitis caused by an incomplete virus (delta virus) that links to the hepatitis B virus for its replication.
- demographically — of or relating to demography, the science of vital and social statistics.
- dephlogisticate — to reduce or remove inflammation from
- dephosphorylate — to remove a phosphate group from (an organic compound)
- dermatoglyphics — the lines forming a skin pattern, esp on the palms of the hands and soles of the feet
- developing bath — an amount of photographic developer into which photographic film or paper is inserted
- diaheliotropism — the tendency among plants to respond to the light of the sun by orienting their leaves perpendicular to the sun's rays, such that the upper surface of the leaves receives maximum light
- diastrophically — in a diastrophic fashion
- diphenyl ketone — benzophenone.
- dolichocephalic — long-headed; having a cephalic index of 75 and under.
- dolphin striker — a short vertical strut between the bowsprit and a rope or cable (martingale) from the end of the jib boom to the stem or bows, used for maintaining tension and preventing upward movement of the jib boom
- drop handlebars — aerodynamic handlebars that drop down and curve towards the rider at the ends rather than turning upwards as on conventional bicycles
- drying-up cloth — a tea towel
- edmund randolph — A(sa) Philip, 1889–1979, U.S. labor leader: president of the Brotherhood of Sleeping Car Porters 1925–68.
- edriophthalmian — edriophthalmous
- edriophthalmous — (of certain crustaceans) having stalkless eyes
- electromyograph — A device used in electromyography to generate electromyograms.
- electrophoreses — Plural form of electrophoresis.
- electrophoresis — The movement of charged particles in a fluid or gel under the influence of an electric field.
- electrophoretic — Of, pertaining to, or produced by electrophoresis.
- elephant's-foot — a monocotyledonous plant, Testudinaria elephantipes, of southern Africa, with a very large starchy tuberous stem, covered in corky scales: family Dioscoreaceae
- eleutherophobia — the fear of freedom
- eleutherophobic — afraid of freedom
- encephalization — (biology) the amount of brain mass exceeding that related to an animal's total body mass.
- encephalography — Any of various techniques for recording the structure or electrical activity of the brain.
- encephalopathic — Relating to encephalopathy.
- endolymphangial — (anatomy) Within a lymphatic vessel.
- english sparrow — a small Eurasian weaverbird, Passer domesticus, now established in North America and Australia. It has a brown streaked plumage with grey underparts
- english speaker — a person who speaks English as a first, or second mother tongue
- epichlorohydrin — an organic compound used as a solvent in resin-making
- ethnopsychology — The scientific study of psychological concepts as they exist across different ethnic groups.
- euphemistically — In a euphemistic manner.
- fahnestock clip — a type of terminal using a spring that clamps readily onto a connecting wire.
- finger alphabet — a series of shapes made by the fingers that indicate letters of an alphabet and can be used in fingerspelling for the deaf
- fluorophosphate — a salt or ester of a fluorophosphoric acid.
- fourth republic — the republic established in France in 1945 and replaced by the Fifth Republic in 1958.
- fusospirochetal — Relating to fusospirochetes.
- galloping-ghost — Harold ("Red"; "the Galloping Ghost") 1903–1991, U.S. football player.
- geomorphologist — A geologist whose speciality is geomorphology.