peak.

Definition of peak. in English English dictionary: acro-; The highest value reached by some quantity in a time period
The stock market reached a peak in September 1929.; A point; the sharp end or top of anything that terminates in a point; as, the peak, or front, of a cap; The narrow part of a vessel's bow, or the hold within it; A local maximum of a function; The upper aftermost corner of a fore-and-aft sail; -- used in many combinations; as, peak-halyards, peak-brails, etc; The top, or one of the tops, of a hill, mountain, or range, ending in a point; often, the whole hill or mountain, especially when isolated; as, the Peak of Teneriffe; To become sick or wan; To reach a highest degree or maximum; the pointed top of a mountain; the top point of a mountain or hill; "the view from the peak was magnificent"; "they clambered to the summit of Monadnock" to reach the highest point; attain maximum intensity, activity; "That wild, speculative spirit peaked in 1929" of a period of maximal use or demand or activity; "at peak hours the streets traffic is unbelievable; {i} top, summit; pinnacle, apex; {n} the top of a hill, forepart of a headdress, upperpart of a sail, yard or gaff; {v} to look sickly or meanly, to sneak, to raise a yard or gaff; The highest point of a gable or also the highest point on a joist or joist girder where the sloped chords meet See also Apex; To rise or extend into a peak or point; to form, or appear as, a peak; a brim that projects to the front to shade the eyes; "he pulled down the bill of his cap and trudged ahead"; when isolated; as, the Peak of Teneriffe; Maximum count of the model source; The peak of a process or an activity is the point at which it is at its strongest, most successful, or most fully developed. The party's membership has fallen from a peak of fifty-thousand after the Second World War The bomb went off in a concrete dustbin at the peak of the morning rush hour. a flourishing career that was at its peak at the time of his death; {s} highest, prime, top; the highest point (of something); "at the peak of the pyramid"; The maximum instantaneous value of a varying current or voltage Also called crest; the maximum amplitude of a voltage or current; the top point of a mountain or hill; "the view from the peak was magnificent"; "they clambered to the summit of Monadnock"; Peak times are the times when there is most demand for something or most use of something. It's always crowded at peak times see also peak time off-peak; The peak of a cap is the part at the front that sticks out above your eyes. To become sickly, emaciated, or pale. to reach the highest point or level. Adam's Peak Bolívar Peak Imeni Ismail Samani Peak Stalin Peak Communism Peak Lassen Peak Margherita Peak Pikes Peak; Peaks are displayed as maxima points in an energy spectrum They show the amount of counted particles with a specific energy With x-ray spectrometry the x-ray quanta generate the peaks Spectrum peaks may be characteristic of the elements present in a sample or they may arise from various artifacts The height of a sample indicates the concentration of an element; The upper aftermost corner of a fore-and-aft sail; used in many combinations; as, peak-halyards, peak-brails, etc; the highest point on the business cycle; to reach the highest point; the highest level or degree attainable; "his landscapes were deemed the acme of beauty"; "the artist's gifts are at their acme"; "at the height of her career"; "the peak of perfection"; "summer was at its peak"; " catapulted Einstein to the pinnacle of fame"; "the summit of his ambition"; "so many highest superlatives achieved by man"; "at the top of his profession"; The uppermost point of a gable; Extreme value of a varying quantity, measured from the zero or mean value Also, a maximum spectral value; On a graph of a sound wave or signal, the peak is the highest point in the waveform It is the point of greatest voltage or sound pressure in a cycle; {f} arrive to a climax, reach the highest point; become thin; raise vertically; highest point, as in: They reached the peak of the mountain by midday; The maximum instantaneous measurement of an electrical event; The extremity of an anchor fluke; the bill; The top, or one of the tops, of a hill, mountain, or range, ending in a point; often, the whole hill or mountain, esp; For sine waves, the point at which the value of y is at its maximum; That part of the business day in which cellular customers can expect to pay full service rates (Back to top ); The peak level or value of something is its highest level or value. Calls cost 36p and 48p per minute; to reach the highest point; attain maximum intensity, activity; "That wild, speculative spirit peaked in 1929"; The highest point of a mountain; To reach a peak or maximum; The transition from the end of an economic expansion to the start of a contraction; The narrow part of a vessels bow, or the hold within it; a V shape; "the cannibal's teeth were filed to sharp points"; The maximum positive or negative dynamic excursion from zero (for an AC coupled signal) or from the offset level (for a DC coupled) of any time waveform Sometimes referred to as "true peak" or "waveform peak "; That part of the business day in which cellular customers pay full service rates Peak hours are generally 6: 00 a m - 10: 00 p m; Part of the day that mobile phone customers can expect to pay full-service airtime rates -- on some systems; the most extreme possible amount or value; "voltage peak"; When something peaks, it reaches its highest value or its highest level. Temperatures have peaked at over thirty degrees Celsius His career peaked during the 1970's; The top, or one of the tops, of a hill, mountain, or range, ending in a point; often, the whole hill or mountain, esp. when isolated; as, the Peak of Teneriffe; A signal is said to "peak" if it is over an acceptable (line) level at an amplifcation stage A peaking signal is "too loud" for the next stage, whether that be recording or further amplification to drive speakers or monitors A peaking signal will sound distorted and can be dangerous to equipment Back; That part of the business day in which cellular customers can expect to pay full service rates; of a period of maximal use or demand or activity; "at peak hours the streets traffic is unbelievable"; of a period of maximal use or demand or activity; "at peak hours the streets traffic is unbelievable; the period of greatest prosperity or productivity; To pry; to peep slyly; A peak is a mountain or the top of a mountain. the snow-covered peaks; approaching or constituting a maximum; "maximal temperature"; "maximum speed"; "working at peak efficiency"; The period of time during the day in which carriers charge full price for airtime Most carriers generally refer to regular business hours It varies from carrier to carrier; The maximum instantaneous value of a varying current or voltage; Highest-usage period of the business day when a cellular system carries the most calling traffic; A wave whose maximum height is attained over only a very small area, sloping away to either side, produced by triangular reef or sandbank; To raise to a position perpendicular, or more nearly so; as, to peak oars, to hold them upright; to peak a gaff or yard, to set it nearer the perpendicular; The highest point of a mountain It is difficult to climb to the top of Pike's Peak in Colorado because it is so high; To acquire sharpness of figure or features; hence, to look thin or sicky