15-letter words containing p, e, d, i
- holding pattern — a traffic pattern for aircraft at a specified location (holding point) where they are ordered to remain until permitted to land or proceed.
- humpback bridge — arched bridge
- hunting leopard — the cheetah.
- hurdle champion — a hurdler who has defeated all others in a competition
- hybrid computer — a computer system containing both analog and digital hardware.
- hydraulic press — a machine permitting a small force applied to a small piston to produce, through fluid pressure, a large force on a large piston.
- hydroxylapatite — Alternative spelling of hydroxyapatite.
- hyperadrenalism — a glandular disorder caused by the overactivity of the adrenal glands and often resulting in obesity
- hyperdemocratic — pertaining to or of the nature of democracy or a democracy.
- hyperfastidious — extremely or excessively fastidious
- hyperlipidaemia — Alternative spelling of hyperlipidemia.
- hyperlipoidemia — An abnormally high level of lipoids in the blood.
- hyperproduction — an increased or excessive production or output
- hypersensitized — Simple past tense and past participle of hypersensitize.
- hypersexualised — Simple past tense and past participle of hypersexualise.
- hypersexualized — Simple past tense and past participle of hypersexualize.
- hyperthyroidism — overactivity of the thyroid gland.
- hyperventilated — Simple past tense and past participle of hyperventilate.
- hypochondriases — Plural form of hypochondriasis.
- hypodorian mode — a plagal church mode represented on the white keys of a keyboard instrument by an ascending scale from A to A, with the final on D.
- hypoionian mode — a plagal church mode represented on the white keys of a keyboard instrument by an ascending scale from G to G, with the final on C.
- hypolydian mode — a plagal church mode represented on the white keys of a keyboard instrument by an ascending scale from C to C, with the final on F.
- i don't suppose — You can say 'I don't suppose' as a way of introducing a polite request.
- identity hyphen — a hyphen separating different racial, national, or religious elements in a compound name describing a person of mixed heritage, as in Australian-Muslim
- identity papers — law: legal documents
- identity parade — law: police lineup
- ideographically — an ideogram.
- impact adhesive — a glue designed to give adhesion when two coated surfaces are pressed together
- implied consent — a manifestation of consent to something through conduct, including inaction or silence.
- imponderability — The state or characteristic of being imponderable.
- in dependent of — not influenced or controlled by others in matters of opinion, conduct, etc.; thinking or acting for oneself: an independent thinker.
- in pari delicto — in equal fault; equally culpable or blameworthy.
- independentista — (especially in Latin America) a person who supports or works toward political independence, especially one supporting radical changes in an existing government or from an existing system of government.
- indian elephant — See under elephant.
- indirect speech — Indirect speech is speech which tells you what someone said, but does not use the person's actual words: for example, 'They said you didn't like it', 'I asked him what his plans were', and 'Citizens complained about the smoke'.
- indisciplinable — unable to be disciplined or corrected by discipline
- interdependable — capable of being depended on; worthy of trust; reliable: a dependable employee.
- interdependence — the quality or condition of being interdependent, or mutually reliant on each other: Globalization of economies leads to an ever-increasing interdependence of countries.
- interdependency — the quality or condition of being interdependent, or mutually reliant on each other: Globalization of economies leads to an ever-increasing interdependence of countries.
- interpenetrated — Simple past tense and past participle of interpenetrate.
- interrecord gap — the area or space separating consecutive physical records of data on an external storage medium.
- ipod generation — members of the generation of adults born after 1970, who are less financially secure than their parents, due to student debt, high house prices, and job insecurity
- job description — an abstract of a job analysis containing the classification of and requirements for a job, used in hiring and placing prospective employees.
- jupiter's-beard — red valerian.
- jurisprudential — the science or philosophy of law.
- juxtapositioned — Simple past tense and past participle of juxtaposition.
- kaleidoscopical — Alternative form of kaleidoscopic.
- lambda particle — any of a family of neutral baryons with strangeness −1 or charm +1, and isotopic spin 0. The least massive member of the lambda family was the first strange particle to be discovered. Symbol: Λ.
- land of promise — Promised Land.
- lead-pipe cinch — an absolute certainty: It's a lead-pipe cinch they'll be there.