IPA meaning in Radio Science ?

Answer:

What is International Phonetic Alphabet mean?

The International Phonetic Alphabet (IPA) is an alphabetic system of phonetic notation based primarily on the Latin script. It was devised by the International Phonetic Association in the late 19th century as a standardized representation of speech sounds in written form. The IPA is used by lexicographers, foreign language students and teachers, linguists, speech–language pathologists, singers, actors, constructed language creators and translators.

The IPA is designed to represent those qualities of speech that are part of lexical (and to a limited extent prosodic) sounds in oral language: phones, phonemes, intonation and the separation of words and syllables. To represent additional qualities of speech, such as tooth gnashing, lisping, and sounds made with a cleft lip and cleft palate, an extended set of symbols, the extensions to the International Phonetic Alphabet, may be used.

IPA symbols are composed of one or more elements of two basic types, letters and diacritics. For example, the sound of the English letter ⟨t⟩ may be transcribed in IPA with a single letter, [t], or with a letter plus diacritics, [t̺ʰ], depending on how precise one wishes to be. Slashes are used to signal phonemic transcription; thus /t/ is more abstract than either [t̺ʰ] or [t] and might refer to either, depending on the context and language.

Occasionally letters or diacritics are added, removed or modified by the International Phonetic Association. As of the most recent change in 2005, there are 107 segmental letters, an indefinitely large number of suprasegmental letters, 44 diacritics (not counting composites) and four extra-lexical prosodic marks in the IPA. Most of these are shown in the current IPA chart, posted below in this article and at the website of the IPA.

reference

Full Form	Category
Intergovernmental Personnel Act	Academic & Science
Indefinite Particle Article	Academic & Science
International Persian Alphabet	Academic & Science
Institutul de Proiectare in Automatizari (Institute of Design in Automation)	Academic & Science
International Permafrost Association	Academic & Science
Union internationale des éditeurs	Academic & Science
Unión Internacional de Editores	Academic & Science
Internationale Verleger-Union	Academic & Science
Indole-3-propionic acid	Academic & Science
Indirect Proof Assumption	Academic & Science
Insolvency Practitioners Association	Accounts and Finance
Institute of Petroleum Accounting	Accounts and Finance
Ipota	Airport Code
International Polka Association	Associations & Organizations
Institute of Public Accountants	Associations & Organizations
Institute of Public Affairs	Associations & Organizations
Indian Polo Association	Associations & Organizations
Indian Pharmacist Association	Associations & Organizations
Innovative Positive Actions	Business
Independent Participation Agreement	Business
Indonesian Professionals Association	Business
Free Trade Agreement Port	Business
Innovation Passion Automation	Business
Institute of Practitioners of Advertising	Business
Investment Program Association	Business
Identity Policy Audit	Business
Innovators Patent Agreement	Business
Indigo Properties Australia, LTD.	Business
Innovative Products of America	Business
Investment Protection Agreement	Business
Institute of Professional Administrators	Business
Icetratt Patent Agency	Business
Indian Pharmaceutical Alliance	Business
Isopropyl Alcohol	Chemistry
Interactive Pedagogical Agents	Community
Integrated Practical Activities	Community
In Person Autograph	Community
International Polychaetology Association	Community
International Psychogeriatric Association	Community
International Phonetic Association	Community
International Psychoanalytical Association	Community
Illinois Principals Association	Community
Independent Pilots Association	Community
International Publishers Association	Community
Innovative Payments Association	Community
Intelligent Peripheral Adapter	Computer Hardware
Interaction Process Anlayzer	Computer Hardware
Independent Provider Association	Computing
Independent Pixel Approximation	Computing
Integrated Payload Analysis	Computing
Information Processing Architecture	Computing
Internet Page Acceleration	Computing
Internet Poetry Archive	Computing
Internet Protocol Adapter	Computing
Internet Private Foundation Austria	Computing
Internet Professionals Association	Computing
Information Protection Addendum	Computing
iOS App store Package	Computing
Illiana Pullers Association	General
Intelligent Personal Agent	General
Intelligent Personal Assistant	General
in Car Personal Assistant	General
India Pale Ale	General
Infidel Pale Ale	General
International Publishers	General
Islesboro Paranormal Activity	General
International Priority Airmail	General
Interim Payment Agreement	General
Individual Pensions Account	General
Image Processing Algorithms	General
Image Product Archive	General
Institutetute of Public Administration	General
India Pale Ales	General
Ingenuity Pathway Analysis	General
Independent Project Analysis	General
India Pale Alcohol	General
Intergovernmental Personnel Agreement	General
International Photography Association	General
iPhone Application Archive	General
Implementation Procedures for Airworthiness	General
Innovations for Poverty Action	General
International Photography Awards	General
Incredibly Palatable Ale	General
Incredibly Pbad Abeer	General
Intelligent Park Assist	General
Intuitive Park Assist	General
Ipod Adapter	General
Infiniti Personal Assistant	General
Identification Plate Approval	General
In Process Assembly	General
International Police Association	Governmental
Integrated Planning Act	Governmental
Institute of Practitioners in Advertising	Governmental
Institute of Public Administration	Governmental
Institute for Portfolio Alternatives	Governmental
International Purchasing Agency	Governmental
Information Passenger Assistant	Governmental
Independent Practice Association	Healthcare
Indian Ports Association	Indian Ministry of Shipping
In Paradiso Absolvo	International
Ilmu Pengetahuan Alam	International
International Probiotics Association	International
Instrument for Pre-Accession Assistance	International
International Play Association	International
Internet Protocol Address	Internet
Individual Pension Account	Jobs
Independent Public Accountant	Jobs
Independent Physicians Association	Medical
Independent Practitioner Association	Medical
Internet Porn Addiction	Medical
ImmunoPeroxidase Assay	Medical
Indicative Prescribing Amount	Medical
Inferior Phrenic Artery	Medical
Inter-Practice Agreement	Medical
Internal Pudendal Artery	Medical
International Paediatrics Association	Medical
Intralobar Pulmonary Artery	Medical
intrapulmonary artery	Medical
Invasive Pulmonary Aspergillosis	Medical
Integrated Program Assessment	Military and Defence
Issue Position Argument	Military and Defence
Intelligence Production Agency	Military and Defence
International Programs Acquisition	Military and Defence
International Phonetic Alphabet	Radio Science
Ipota, Vanuatu	Regional
Innovation Prize for Africa	Regional
Interprocedural Analysis	Softwares
Intergovernmental Personnel Action	Space Science
International Powerlifting Association	Sports
Individual Practice Association	Sports
Investment Promotion Agency	Stock Exchange
Investment Promotion Agencies	Stock Exchange