natural object | an object occurring naturally, not made by man |
natural family planning | any of several methods of family planning that do not involve sterilization or contraceptive devices or drugs, coitus is avoided during the fertile time of a woman's menstrual cycle |
natural | (craps) a first roll of or that immediately wins the stake |
natural virtue | (scholasticism) one of the four virtues (prudence, justice, fortitude, and temperance) derived from nature |
high pitch high frequency | a pitch that is perceived as above other pitches |
low pitch low frequency | a pitch that is perceived as below other pitches |
frequency response | (electronics) a curve representing the output-to-input ratio of a transducer as a function of frequency |
audio audio frequency | an audible acoustic wave frequency |
radio frequency | an electromagnetic wave frequency between audio and infrared |
infrared infrared frequency | the infrared region of the electromagnetic spectrum, electromagnetic wave frequencies below the visible range, they could sense radiation in the infrared |
extremely low frequency ELF | below kilohertz |
very low frequency VLF | tokilohertz |
low frequency LF | to kilohertz |
medium frequency MF | to kilohertz |
high frequency HF | tomegahertz |
very high frequency VHF | to megahertz |
ultrahigh frequency UHF | to megahertz |
superhigh frequency SHF | togigahertz |
extremely high frequency EHF | to gigahertz |
natural ability | ability that is inherited |
endowment gift talent natural endowment | natural abilities or qualities |
fundamental fundamental frequency first harmonic | the lowest tone of a harmonic series |
natural history | the scientific study of plants or animals (more observational than experimental) usually published in popular magazines rather than in academic journals |
law natural law | a rule or body of rules of conduct inherent in human nature and essential to or binding upon human society |
natural science | the sciences involved in the study of the physical world and its phenomena |
frequency distribution | a distribution of observed frequencies of occurrence of the values of a variable |
physics natural philosophy r | the science of matter and energy and their interactions, his favorite subject was physics |
natural language processing NLP human language technology | the branch of information science that deals with natural language information |
natural theology | a theology that holds that knowledge of God can be acquired by human reason without the aid of divine revelation |
frequency band waveband | a band of adjacent radio frequencies (e.g., assigned for transmitting radio or television signals) |
frequency modulation FM | modulation of the frequency of the (radio) carrier wave |
natural language processor natural language processing application | an application program that deals with natural language text |
natural logarithm Napierian logarithm | a logarithm to the base e |
natural cancel | a notation cancelling a previous sharp or flat |
natural language tongue | a human written or spoken language used by a community, opposed to e.g. a computer language |
happening occurrence occurrent natural event | an event that happens |
Royal Society Royal Society of London for Improving Natural Knowledge | an honorary English society (formalized inand given a royal charter by Charles II in ) through which the British government has supported science |
covering natural covering cover | a natural object that covers or envelops, under a covering of dust, the fox was flushed from its cover |
enclosure natural enclosure | a naturally enclosed space |
natural depression depression | a sunken or depressed geological formation |
natural elevation elevation | a raised or elevated geological formation |
natural order | the physical universe considered as an orderly system subject to natural (not human or supernatural) laws |
spring fountain outflow outpouring natural spring | a natural flow of ground water |
natural | someone regarded as certain to succeed, he's a natural for the job |
naturalist natural scientist | a biologist knowledgeable about natural history (especially botany and zoology) |
natural phenomenon | all phenomena that are not artificial |
radio spectrum radio-frequency spectrum | the entire spectrum of electromagnetic frequencies used for communications, includes frequencies used for radio and radar and television |
natural resource natural resources | resources (actual and potential) supplied by nature |
natural childbirth | labor and childbirth without medical intervention, no drugs are given to relieve pain or aid the birth process, natural childbirth is considered the safest for the baby |
natural process natural action action activity | a process existing in or produced by nature (rather than by the intent of human beings), the action of natural forces, volcanic activity |