16-letter words containing a, p, t, o
- hamiltonian path — Hamiltonian problem
- hard put (to it) — having considerable difficulty or trouble
- have the drop on — a small quantity of liquid that falls or is produced in a more or less spherical mass; a liquid globule.
- hayes-compatible — (communications) A description of a modem which understands the same set of commands as one made by Hayes.
- head post office — the main post office in a town
- headed notepaper — notepaper headed with the name and address of a person or organization
- health food shop — a shop which sells health foods
- health inspector — a public employee who inspects places such as restaurants, shops, factories etc to make sure they are hygienic and do not pose any dangers to health
- healthcare proxy — a legal document in which a person can appoint someone to make decisions about medical treatment in the event that he or she is no longer mentally competent or able to communicate.
- heat prostration — heat exhaustion.
- heliotherapeutic — Pertaining to heliotherapy.
- hemopneumothorax — (medicine) pneumothorax and hemothorax occurring together.
- hemotherapeutics — hemotherapy.
- hepatopancreases — Plural form of hepatopancreas.
- hermaphroditical — Alternative form of hermaphroditic.
- heteropalindrome — Something that spells something else when reversed, a semordnilap.
- hierophantically — In a hierophantic manner; in the manner of a hierophant.
- high/great hopes — If you have high hopes or great hopes that something will happen, you are confident that it will happen.
- hippocratic oath — an oath embodying the duties and obligations of physicians, usually taken by those about to enter upon the practice of medicine.
- histopathologist — A person involved in histopathology.
- historiographies — Plural form of historiography.
- hit one's straps — to achieve one's full potential or become fully effective
- horizontal plane — flat surface parallel to the horizon
- hospital corners — a fold on a bed sheet or blanket made by tucking the foot or head of the sheet straight under the mattress with the ends protruding and then making a diagonal fold at the side corner of the sheet and tucking this under to produce a triangular corner.
- hospital service — the whole organization of government funded hospitals, their staff, and the services they provide
- hospitalizations — Plural form of hospitalization.
- hygrothermograph — an instrument for recording temperature and relative humidity.
- hyper-patriotism — devoted love, support, and defense of one's country; national loyalty.
- hyperaccumulator — a plant that absorbs toxins, such as heavy metals, to a greater concentration than that in the soil in which it is growing
- hyperconjugation — (organic chemistry) A weak form of conjugation in which single bonds interact with a conjugated system.
- hyperinnervation — the act of innervating; state of being innervated.
- hyperoxygenation — to treat, combine, or enrich with oxygen: to oxygenate the blood.
- hyperstimulation — to rouse to action or effort, as by encouragement or pressure; spur on; incite: to stimulate his interest in mathematics.
- hyperventilation — excessively rapid and deep breathing.
- hypervitaminosis — an abnormal condition caused by an excessive intake of vitamins.
- hypnagogic state — the drowsy period between wakefulness and sleep, during which fantasies and hallucinations often occur.
- hypoalimentation — insufficient or inadequate nourishment.
- hypocoristically — In a hypocoristic manner.
- hyponitrous acid — an unstable, crystalline acid, H 2 N 2 O 2 .
- hypophosphatemia — (medicine) An electrolyte disturbance in which there is an abnormally low level of phosphate in the blood, most commonly seen when malnourished patients are given large amounts of carbohydrates, creating a high phosphorus demand in the cells of the body.
- hypostatic union — (In Cristianity) Christ's condition of being, at the same time, both human and divine
- immunodepressant — preventing or diminishing the immune response
- impact extrusion — an extrusion process in which a slug of cold metal in a shallow die cavity is formed by the action of a rapidly moving punch that forces the metal through the die or back around the punch.
- import surcharge — a tax imposed on all imported goods, adding to any established tariffs
- in loco parentis — in the place or role of a parent.
- in plain clothes — not wearing a uniform
- in/into a temper — If someone is in a temper or gets into a temper, the way that they are behaving shows that they are feeling angry and impatient.
- incontinence pad — an absorbent pad used by incontinent people
- incorporated bar — (in some states) a system of bar associations to which all lawyers are required to belong.
- indo-europeanist — a linguist specializing in the study, especially the comparative study, of the Indo-European languages.