12-letter words containing p, i
- ailurophobia — an abnormal fear of cats
- ailurophobic — relating to ailurophobia
- aiming point — the point at which a gun or bombsight is aimed in order to strike a desired target, often a point in advance of or behind the actual target.
- air pressure — the force of air pressing down on an area
- air purifier — a device which removes pollutants and allergens from the air
- airpocalypse — (informal) The presence of dense smog in many parts of China.
- airport code — a three-letter abbreviation of the names of the world's major airports, used especially as an identifier for routing baggage.
- alcaptonuria — Alternative spelling of alkaptonuria.
- alexipharmac — an antidote
- alexipharmic — acting as an antidote
- alice palmer — Alice Elvira, 1855–1902, U.S. educator.
- alkaptonuria — excessive excretion of homogentisic acid in the urine, caused by a hereditary abnormality of the metabolism of tyrosine and phenylalanine.
- allelopathic — relating to or characterized by allelopathy
- allomorphism — variation in the crystalline form of a chemical compound
- allotropical — (chemistry, rare) Of or pertaining to an element that exhibits allotropy.
- alpha boötis — Arcturus
- alpha leonis — Regulus1
- alphabetical — Alphabetical means arranged according to the normal order of the letters in the alphabet.
- alphabetised — (British) Arranged in alphabetical order.
- alphabetiser — Non-Oxford British standard spelling of alphabetizer.
- alphabetized — (North America) Arranged in alphabetical order.
- alphabetizer — to put or arrange in alphabetical order.
- alphabetizes — Third-person singular simple present indicative form of alphabetize.
- alphamerical — relating to alphanumeric characters
- alphanumeric — (of a character set, code, or file of data) consisting of alphabetical and numerical symbols
- alphaviruses — Plural form of alphavirus.
- alphitomancy — the use of barley meal as a means of divination.
- alpine-style — of or in an ascent (esp in high mountains like the Himalayas) in which the climbers carry all their equipment with them in a single ascent from base to summit
- ambiposition — (linguistics) An adposition that can occur either before or after its complement.
- amenhotep iv — died 1357? b.c, king of Egypt 1375?–1357?: reformer of ancient Egyptian religion (son of Amenhotep III).
- amethopterin — (now rare) Methotrexate.
- aminophenols — Plural form of aminophenol.
- amiphenazole — A respiratory stimulant traditionally used as an antidote for barbiturate or opiate overdose, usually in combination with bemegride.
- amnioscopies — Plural form of amnioscopy.
- amor patriae — love of one's country; patriotism
- amperometric — relating to or involving the measurement of an electric current
- amphetamines — Plural form of amphetamine.
- amphibiology — The branch of science that deals with amphibious animals.
- amphibiously — In the manner of an amphibian.
- amphiblastic — (of animal ova) showing complete but unequal cleavage after fertilization
- amphibolitic — Of, pertaining to, or composed of an amphibolite.
- amphibrachic — Consisting of amphibrachs, metrical feet consisting of either a long syllable between two that are short, or an accented syllable between two that are not accented.
- amphicarpous — producing two kinds of fruit that differ either in form or in time of ripening.
- amphicoelous — (of the vertebrae of most fishes and some amphibians) concave at the anterior and posterior ends
- amphictyonic — of or relating to an amphictyon or an amphictyony.
- amphidentate — (of a ligand) able to coordinate through either of two different atoms, as in CN–
- amphidiploid — a plant originating from hybridization between two species in which the chromosome number is the sum of the chromosome numbers of both parental species. It behaves as an independent species
- amphiregulin — (protein) A particular autocrine growth factor.
- amphistomous — (of certain animals, such as leeches) having a sucker at either end of the body
- amphitheater — An amphitheater is a large open area surrounded by rows of seats sloping upward. Amphitheaters were built mainly in Greek and Roman times for the performance of plays.