Skip to content A B C D E F G H I J K L M N O P Q R S T U V W X Y Z quadricyclist One who rides a quadricycle. quadridavyne A mineral found in volcanic ash. quadridentate Having four teeth. quadridentoid Having four "teeth" quadridigitate Having only four fingers on a hand, or toes on a foot quadridimensional four-dimensional quadridimensionality The quality of being quadridimensional. quadridirectional In or relating to four directions. quadrifarious Arranged in four rows or ranks. quadrifariously In a quadrifarious manner. quadrifid Divided, or deeply cleft, into four parts. quadrifilar Having four wires, threads or filaments. quadrifine Of insect wings, four veined. quadriflagellate Having four flagella quadrifocal Involving four foci. quadrifoliate Having four leaves. quadrifoliolate Having four leaflets. quadriforce Synonym of four-force. quadriform Having four forms, parts or aspects quadrifrons Synonym of tetrapylon. quadrifrontal In the form of a quadrifrons. quadrifurcate Branching fourfold; having four branches. quadrifurcated Having four forks or branches; quadrifurcate. quadrifurcation A division into four branches quadrify To convert into one or more quadrilaterals. quadriga A Roman racing chariot drawn by four horses abreast. quadrigal Of or pertaining to a quadriga (four horse team) quadrigamist Someone who has four spouses at the same time. quadrigamy The state of having four spouses simultaneously. quadrigate Synonym of quadrigatus quadrigatus A medium-sized silver coin minted by the Roman Republic during the 3rd century B.C.E. quadrigeminal Having four parts, or two pairs. quadrigeminate Synonym of quadrigeminal. quadrigeminum One of the corpora quadrigemina. quadrigeminy A form of cardiac arrhythmia in which four beats are followed by a pause. quadrigenarious Having or consisting of four hundred. quadrigeneric Of or relating to four genera. quadrigenic produced by (the interaction of) four genes quadriglandular Having or relating to four glands. quadrigrade Belonging to a certain conjugation class of verbs in Old Japanese or Classical Japanese, so called due to their use of four vowels (grades or rows on the gojūon chart). quadrigram fourgram quadrihybrid A hybrid whose parents differ by four pairs of contrasting Mendelian characters. quadrihydrate tetrahydrate quadrijugal Especially of a chariot: pulled by four horses. quadrijugate Pinnate, with four pairs of leaflets. quadrijugous quadrijugate quadrilabial Articulated with two pairs of lips (i.e. involving mouth-to-mouth contact between two people). quadrilaminar Having four layers. quadrilaminate Having four layers. quadrilater quadrilateral quadrilateral A polygon with four sides. quadrilaterality The quality of being quadrilateral. quadrilateralize To quadrangulate. quadrilaterally In a quadrilateral fashion. quadrilateralness The quality of being quadrilateral. quadrilateration The determination of the location of a point based on its distance from four other points. quadrileaflet Having four leaflets. quadrilemma A circumstance in which a choice must be made between four undesirable options. quadrilinear Having, or bounded by, four lines. quadrilinearity The condition of being quadrilinear quadrilinearly In a quadrilinear manner. quadrilingual Involving four languages. quadrilingualism The condition of being quadrilingual; the ability to speak four languages. quadrilingually In four languages. quadriliteral Consisting of four letters. quadriliteralism The quality of being quadriliteral. quadrillage The use of a grid of squares superimposed on a document such as a map. quadrille A dance originating in the mid-1700s with four couples forming a square, rather much like the modern square dance. quadriller One who dances the quadrille. quadrilliard A thousand million million million million: 1 followed by twenty-seven zeros, 10²⁷. quadrillion A thousand trillion (logic: 1,000 × 1,000⁴): 1 followed by fifteen zeros, 10¹⁵. quadrillionaire Somebody whose wealth is at least one quadrillion (10¹⁵) currency units (which is possible only in places with hyperinflated currencies). quadrillionfold By a multiple of one quadrillion; by a quadrillion times as much or as many. quadrillionth The ordinal form of the number one quadrillion. quadrilobate Having four lobes. quadrilobe Synonym of quatrefoil quadrilobed Having four lobes. quadrilobular Having four lobules. quadrilocular Having four cells or compartments. quadriloculate Having four loculi quadriloculine quadrilocular quadrilogue A discourse or colloquy by four people. quadrilogy A tetralogy. quadrimalleolar Involving the lateral malleolus, the medial malleolus, the distal posterior and the anterior tibial tubercule aspect of the tibia. quadrimembral Having, or consisting of, four members. quadrimer tetramer quadrimester A period of four months or about four months. quadrimetallic Containing atoms of four metals in each molecule. quadrimillennial Occurring every four thousand years. quadrimodal Having, or employing, four modes quadrimodality The condition of being quadrimodal quadrimodular Having four modes of operation. quadrimolecular Involving four molecules quadrimonthly Occurring every four months. quadrimoraic Having four morae. quadrimoraicity The property of having four morae. quadrin An old copper coin of small value. quadrinate Having four divisions or leaflets. quadrinational Of or pertaining to four nations. Quadring A village and civil parish in South Holland district, Lincolnshire, England (OS grid ref TF2233). quadringenary A quatercentenary quadringentenary Of or relating to a 400th anniversary. quadringentennial Of or pertaining to a quadringenary Quadrini A surname from Italian. quadrinodal Having four nodes. quadrinomial Consisting of four names or parts or terms. quadrinuclear Having four nuclei. quadrinucleate Having four nuclei. quadrinvariant an invariant of degree 4 quadrioxalate A salt containing four equivalents of oxalic acid to one equivalent of the basic element (or to one equivalent of a univalent basic radical). quadripara A female who has borne four offspring. quadriparental Involving four parents. quadriparesis weakness or paralysis in all four limbs quadriparetic Of, relating to, or affected by quadriparesis; having profound weakness in all four extremities. quadriparous Having given birth to four offspring. quadripartite Divided into four parts. quadripartitely In a quadripartite fashion; into four parts. quadripartition A division into four parts. quadripartitism A quadripartite approach or policy. quadripaschal Including four Passovers. quadripedal four-footed quadripennate Having four wings. quadripetal Having four petals quadriphase A phase modulation technique that uses four different phase angles. quadriphasic Having four phases quadriphosphate Any salt or ester containing four phosphate groups. quadriphyllous Having four leaves quadripinnate Having four pinnae quadriplanar Composed of, or relating to, four planes. quadriplane Quadruplane. quadriplegia Paralysis from the neck down. quadriplegic Of, related to, or suffering from quadriplegia. quadripoint A point at which four borders meet. quadripolar Having or involving four poles. quadripole An electrical circuit that has two pairs of external terminals. quadriporate Having four pores. quadriportico A four-sided portico. quadriporticus A nearly square courtyard surrounded by colonnaded porticoes. quadriptych A tetraptych. quadripulse Employing four pulses (typically, four monophasic magnetic pulses) quadriquadric A curve that is the complete intersection of two quadric surfaces. quadriracial Of or relating to four races. quadriradial Having four radiating chromatids quadriradiate Having or consisting of four rays or similar radiating parts. quadriradical which consist of four consonants in its root formula. quadrireme A galley with four banks of oars, each rowed by two oarsmen. quadrirotor Having four rotors; having four main rotors. quadrisecant A line that passes through four points of the curve. quadrisect To divide into four parts. quadrisection The action of dividing something into four parts.