fundamental as in the lowest tone of a harmonic series
fundamental frequency the lowest tone of a harmonic series
first harmonic the lowest tone of a harmonic series
fundamental as in serving as an essential component
"a cardinal rule"
"the central cause of the problem"
"an example that was fundamental to the argument"
"computers are fundamental to modern industrial structure"
cardinal (Roman Catholic Church) one of a group of more than 100 prominent bishops in the Sacred College who advise the Pope and elect new Popes ; the number of elements in a mathematical set; a variable color averaging a vivid red ; crested thick-billed North American finch having bright red plumage in the male ; serving as an essential component; being or denoting a numerical quantity but not order
central a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication ; serving as an essential component; in or near a center or constituting a center
keyserving as an essential component; identify as in botany or biology, for example ; provide with a key; vandalize a car by scratching the sides with a key; regulate the musical pitch of ; harmonize with or adjust to; metal device shaped in such a way that when it is inserted into the appropriate lock the lock's mechanism can be rotated ; something crucial for explaining; pitch of the voice; any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music ; a kilogram of a narcotic drug; a winged often one-seed indehiscent fruit as of the ash or elm or maple ; United States lawyer and poet who wrote a poem after witnessing the British attack on Baltimore during the War of 1812; a coral reef off the southern coast of Florida ; (basketball) a space (including the foul line) in front of the basket at each end of a basketball court; a list of answers to a test; a list of words or phrases that explain symbols or abbreviations ; a generic term for any device whose possession entitles the holder to a means of access; mechanical device used to wind another device that is driven by a spring (as a clock) ; the central building block at the top of an arch or vault ; a lever (as in a keyboard) that actuates a mechanism when depressed
primal serving as an essential component; having existed from the beginning
fundamental as in being or involving basic facts or principles
"the fundamental laws of the universe"
"a fundamental incompatibility between them"
"these rudimentary truths"
rudimentary being or involving basic facts or principles; being in the earliest stages of development; not fully developed in mature animals
underlyingin the nature of something though not readily apparent; located beneath or below ; being or involving basic facts or principles
fundamental as in far-reaching and thoroughgoing in effect especially on the nature of something
"the fundamental revolution in human values that has occurred"
"the book underwent fundamental changes"
"committed the fundamental error of confusing spending with extravagance"
"profound social changes"
profoundshowing intellectual penetration or emotional depth; of the greatest intensity; far-reaching and thoroughgoing in effect especially on the nature of something; coming from deep within one; (of sleep) deep and complete; situated at or extending to great depth