One of the mysteries of the English language finally explained.
1The top or highest part of something, especially one forming a point.‘the living room extends right up into the apex of the roof’figurative ‘the apex of his career was when he hoisted aloft the World Cup’
tip, peak, summit, pinnacle, top, highest part, highest point, crest, vertexView synonyms
- ‘A monumental structure especially characteristic of ancient Egypt, often built as a royal tomb and usually made of stone, with a square base and sloping sides meeting centrally at an apex.’
- ‘From this level on to the apex of the pyramid, it was then simply a matter of piling up more blocks.’
- ‘Natural light floods in from a slot cut into the apex of the pitched roof and tactful spotlighting emphasizes particular pieces.’
- ‘Crucks, great curving oak trunks arching from ground level to the apex of a building, were one of the classic ways in the Middle Ages of providing a basic framework for a building, and a means to support its roof.’
- ‘And if we look to our left from the upper deck of the bus our eyes are level with the apex of what appears to be the outline of a boat's prow pointing to the sky, or a slender Norman arch in grey stone.’
- ‘Up in the heights of the room, Bross could barely pick out the small windows that lined the apex of the ceiling.’
- ‘On a calm day, ventilation is mostly achieved by the stack effect, whereby warm air generated by the livestock rises and is expelled through the opening in the roof apex and is replaced by fresh air drawn in at the eave inlets.’
- ‘The evidence for this is a cruck, a pair of large and matching curved timbers reaching from the ground to the apex of the roof, a characteristic of medieval timber-framed buildings.’
- ‘In most areas the original flat, bituminised felt covered roof had been overlain with a profiled metal decking set as a pitched roof with slopes falling from a central apex.’
- ‘I don't know if anyone's ever checked, but it's believed that he clambered up the dome of St Peter's, and scrawled his name at the apex, thus achieving the highest graffiti in the known world.’
- ‘These, braced by a series of steel tendons, taper towards the apex of the roof.’
- ‘They were clamped at their bases to a concrete ring beam and bent while still green, tied together in pairs at the apex of the roof.’
- ‘These bones, whatever their true nature, are notable for extending thin lamina under the surface of the adjacent dermal bones, thus presumably adding stability to the apex of the skull roof.’
- ‘The Kahri kingdom was built and founded throughout the forested hills, conformed to the contour of the land with the temple at its apex to top off the grand city.’
- ‘Much of it was subdued with shadows filling every corner reaching the apex of the vaulted ceiling.’
- ‘The mountain range's east summit comes next and then the rocky perch that is the 3776 ft summit, the apex of the quartet of ridges.’
- ‘The left-hand wing houses an oval entrance porch that leads to a fine reception hall decorated in pink with Ionic columns, a marble fireplace and a lantern-style window high in the central apex of the ceiling.’
- ‘The monks chanting fills the half - ruined building, spiralling up to the apex of the ceiling, the monks themselves out of sight, doing their work.’
- ‘The pitched roof of each shelter was 2.2 m above ground level at its apex and 1.5 m high along the sides and ends.’
- ‘An archway's most important stone is the keystone, the wedge-shaped piece of rock at its apex.’
- 1.1Geometry The highest point in a plane or solid figure, relative to a base line or plane.
- ‘It has an uneven shape, being wider at the apex than at the base.’
- ‘Spire angle is between 105-115 degrees with the apex markedly sharper.’
- ‘In the methane molecule CH 4, for instance, the carbon atom is located at the center of a tetrahedron with the four hydrogen atoms located at the four apexes of the tetrahedron.’
- ‘In contrast, Blake demonstrated that a triangle with a proximal apex and distal base is the most effective shape for rowing.’
- ‘Slopes increased from the apex to the base, although the data were more scattered at the base.’
- 1.2Botany The growing point of a shoot.
- ‘In order to maintain the leaf area constant throughout growth, leafy shoot vegetative growth was arrested by cutting the terminal apex and new lateral shoots were removed.’
- ‘Excision of the apex releases lateral shoot buds; these were removed and collected as one sample.’
- ‘Shoot apices from three plants were dissected.’
- ‘The plant blooms in April and inflorescences are produced at the apex of shoots.’
- ‘A shoot apex was considered dead if the terminal bud was absent or if it was dark-brown in colour, dehydrated or damaged.’
- 1.3 The highest level of a hierarchy, organization, or other power structure regarded as a triangle or pyramid.‘the central bank is at the apex of the financial system’
Reach a high point or climax.‘melodic lines build up to the chorus and it apexes at the solo’
- ‘The hours and hours and hours of travel finally apexed with a few more hours and hours of travel which led to a couple more hours and hours of travel until I finally arrived in Seattle, the home of ‘really cold rain.’’
- ‘In Argentina, differentiation on the basis of race starts with a color continuum apexing at ‘White,’ while ‘Black’ constitutes the base of the social pyramid.’
- ‘Montana law, which allowed miners to pursue veins of ore that ‘apexed’ on their claims, regardless of where they led, handed judges enormous power-and enormous opportunity for corruption.’
Early 17th century: from Latin, ‘peak, tip’.
A system of reduced fares for scheduled airline flights and railroad journeys that must be booked and paid for before a certain period in advance of departure.‘Apex fares’
- ‘Off peak tickets, including Apex, Advance and SuperAdvance, are also going up by an average of three per cent.’
- ‘There will be no change on Apex fares for South Wales customers, although there will be a rise of 2.5 per cent elsewhere.’
- ‘Fares will remain roughly the same with an Apex return fare at £16 for advance bookings.’
- ‘Last month, the Queen and Duke of Edinburgh took a First Great Western train from London to Chippenham, on an Apex fare of £39.70.’
- ‘These will replace the current First and Standard Class Off-Peak, Apex, SuperAdvance and Leisure First tickets.’
1970s: from A dvance P urchase Ex cursion.
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