13-letter words containing a, p, o, t, h, e
- open-and-shut — immediately obvious upon consideration; easily decided: an open-and-shut case of murder.
- openheartedly — Alt form open-heartedly.
- opthalmoscope — Misspelling of ophthalmoscope.
- optical bench — an apparatus, as a special table or rigid beam, for the precise positioning of light sources, screens, and optical instruments used for optical and photometric studies, having a ruled bar to which these devices can be attached and along which they can be readily adjusted.
- orchestra pit — musicians' seating in front of stage
- orchestra-pit — a group of performers on various musical instruments, including especially stringed instruments of the viol class, clarinets and flutes, cornets and trombones, drums, and cymbals, for playing music, as symphonies, operas, popular music, or other compositions.
- organotherapy — the branch of therapeutics that deals with the use of remedies prepared from the organs of animals, as from the thyroid gland, the pancreas, or the suprarenal bodies.
- orthocephalic — having a medium or intermediate relation between the height of the skull and the breadth or length.
- orthoepically — In terms of correct pronunciation.
- orthographies — Plural form of orthography.
- orthographize — to spell correctly or according to the rules of orthography.
- orthopaedical — Pertaining to orthopaedics; characteristic of orthopaedia.
- ostreophagous — oyster-eating
- painted horse — paint (def 6).
- paleethnology — (formerly) the branch of ethnology concerned with the earliest or most primitive human societies.
- palos heights — a city in NE Illinois, near Chicago.
- pantheologist — a student of, or expert in, pantheology
- parasyntheton — a word formed by parasynthesis; for example, kind-hearted
- parental home — a school for problem children.
- parnell shout — a social occasion where each person in a group pays for his or her own entertainment or meal
- parthenocarpy — the production of fruit without fertilization of an egg in the ovary.
- parthenopaeus — a son of Hippomenes and Atalanta, and one of the Seven against Thebes.
- parthenospore — a spore developed without fertilization.
- pass the word — If you pass the word, you tell someone something that another person has told you.
- patent holder — a person or company that holds a patent
- pathogenicity — the disease-producing capacity of a pathogen.
- peccatophobia — an abnormal fear of sinning.
- pentadelphous — (of a plant) having its stamens arranged in five groups; (of stamens) being arranged in five groups
- pentastichous — (of plant leaves) arranged in five vertical rows
- perchlorinate — to combine with the maximum proportion of chlorine.
- petrochemical — a chemical substance obtained from petroleum or natural gas, as gasoline, kerosene, or petrolatum.
- petrophysical — relating to the analysis of the constitution and characteristics of rocks
- phallocentric — a doctrine or belief centered on the phallus, especially a belief in the superiority of the male sex.
- pharyngectomy — excision of part or all of the pharynx.
- phelloplastic — an image or a representation that has been fashioned from cork
- phenobarbital — a white, crystalline powder, C 1 2 H 1 2 N 2 O 3 , used as a sedative, a hypnotic, and as an antispasmodic in epilepsy.
- phenomenality — highly extraordinary or prodigious; exceptional: phenomenal speed.
- phenothiazine — Chemistry. a grayish-green to greenish-yellow, crystalline, water-insoluble solid, C 1 2 H 9 NS, used chiefly as an insecticide and vermifuge, and in the synthesis of pharmaceuticals.
- phlogisticate — to integrate or blend phlogiston with
- phone-tapping — Phone-tapping is the activity of listening secretly to someone's phone conversations using special electronic equipment. In most cases phone-tapping is illegal.
- phosphorylate — to introduce the phosphoryl group into (an organic compound).
- photo gallery — display of collected photographs
- photoallergic — photosensitive.
- photochemical — the branch of chemistry that deals with the chemical action of light.
- photocopiable — able or legally permitted to be photocopied
- photogelatine — relating to photographic processes in which gelatine is used in receiving or transferring prints
- photonegative — pertaining to a substance, as selenium, having a conductivity that decreases upon absorption of electromagnetic radiation.
- photoreaction — a chemical reaction that involves or requires light.
- photosynthate — a compound formed by photosynthesis.
- phototelegram — a telegram that is sent by means of phototelegraphy