All articles starting with M
36,687 articles
Met Office
The Met Office, formally the Meteorological Office, is the United Kingdom's national weather service, founded in 1854 by Robert FitzRoy of HMS Beagle to improve safety at sea.
Met Office Hadley Centre
The Met Office Hadley Centre is the United Kingdom's primary source of climate change information and one of the world's principal climate research institutes, founded in 1990 as part of the Met Office.
MeT-5A
MeT-5A (MeT5A, CVCL_3749, ATCC CRL-9444) is an SV40 large T antigen-immortalized, non-tumorigenic human pleural mesothelial cell line from non-cancerous donors, established in 1989 and widely used in asbestos and fiber toxicology research.
Meta
Meta (Río Meta), major Colombian river and largest Colombian tributary of the Orinoco, about 804-1,250 km long, rising in the Andes, crossing the Llanos Orientales, navigable, joining the Orinoco near Puerto Carreño.
Meta (disambiguation)
Meta is a disambiguation page covering the word's distinct senses: a Greek-derived prefix, a self-referential adjective, computing terms like metadata and metasearch, and Meta Platforms, Facebook's parent company.
Meta AI
Meta AI, also known as Facebook Artificial Intelligence Research (FAIR), is Meta Platforms' AI assistant across WhatsApp, Instagram, and Facebook, and the research division behind the Llama models.
Meta AI research programs
Meta AI research programs are Meta Platforms' academic engagement schemes funding outside AI researchers through a PhD fellowship, a one-year AI residency, and a Carnegie Mellon mentorship program.
Meta element
The meta element, also known as the meta tag or metatag, is an HTML element for document-level metadata, including page descriptions, character encoding, and search-engine rules like noindex.
Meta Horizon OS
Meta Horizon OS, formerly Meta Quest OS, is the mixed reality operating system behind Meta's Quest headsets, built on Android and opened to third-party makers in 2024.
Meta Incognita Peninsula
Meta Incognita Peninsula (Мета-Инкогнита) is a peninsula on southern Baffin Island, Nunavut, Canada, at 62°45'N/68°30'W, named by Elizabeth I after Frobisher's 1576-1578 voyages and underlain by Paleoproterozoic Lake Harbour Group rocks.
Meta MTIA
Meta MTIA (Meta Training and Inference Accelerator) is a family of custom AI accelerator chips developed by Meta with Broadcom, first deployed for recommendation inference.
Meta Muse
Meta Muse is a personal AI agent launched by Meta in 2026 that executes tasks like sending email, booking travel, and shopping from a dedicated secure cloud virtual machine.
Meta Networks
Meta Networks was a Tel Aviv cybersecurity startup founded in 2016 that sold identity-based zero-trust network access as a cloud service, acquired by Proofpoint in 2019 for $120 million.
Meta Platforms
Meta Platforms, formerly Facebook, Inc., is an American technology company in Menlo Park, California, operating Facebook, Instagram, Messenger, and WhatsApp and renamed Meta in 2021.
Meta Quest
Meta Quest is a line of standalone virtual reality and mixed reality headsets sold by Meta Platforms. The line began as the Oculus Quest in 2019 and runs Meta Horizon OS.
Meta Quest 3
The Meta Quest 3 is a standalone virtual and mixed reality headset by Meta, released in October 2023 starting at $499.99 as the successor to the Quest 2.
Meta Quest 3S
The Meta Quest 3S is a standalone virtual reality and mixed reality headset by Meta, released in October 2024 with the Quest 3's processor at a lower $299.99 price.
Meta refresh
Meta refresh, or meta redirect, is an HTML mechanism that instructs the browser to reload the current page or navigate to another URL after a timed delay.
Meta Roestenberg
Meta Roestenberg is a Dutch infectious-diseases physician and professor of vaccinology at Leiden University Medical Center, known for controlled human infection models for malaria and vaccine testing.
Meta Romuli
Meta Romuli was a large pyramidal tomb in ancient Rome, near the Vatican, believed in the Middle Ages to be the tomb of Romulus and demolished in 1499.
Meta Runner
Meta Runner is an Australian computer-animated cyberpunk web series (2019–2022, 3 seasons, 28 episodes) by Glitch Productions founders Kevin and Luke Lerdwichagul, following amnesiac gamer Tari against TAS Corp, funded by Screen Australia and Epic Games.
Meta Superintelligence Labs
Meta Superintelligence Labs is the artificial intelligence division of Meta Platforms, announced by Mark Zuckerberg in June 2025 to consolidate Meta's AI work, including FAIR, under chief AI officer Alexandr Wang.
Meta-analysis
A meta-analysis is a statistical method that combines the results of several independent studies into a single estimate of an effect, with a measure of uncertainty.
Meta-C–H functionalization
Meta-C–H functionalization is the selective transformation of the meta C–H bond of an aromatic ring, achieved through removable directing templates introduced by Jin-Quan Yu's group at Scripps in 2012.
Meta-ethnography
Meta-ethnography is a seven-phase interpretive method for synthesizing qualitative studies by translating their key concepts and metaphors into one another, developed by Noblit and Hare in 1983 and now well established in health research.
Meta-holography
Meta-holography, or metasurface holography, implements computer-generated holograms on ultrathin metasurfaces whose subwavelength nanostructures modulate light, achieving higher resolution, wider bandwidth, and broader viewing angles than conventional displays, with uses in 3D displays, security, and quantum optics.
Meta-optimization
Meta-optimization is an optimization technique in which an outer optimization loop tunes the parameters, hyperparameters, or design of another optimization algorithm to improve its performance on a class of problems.
Meta-regression
Meta-regression is a statistical technique in meta-analysis that regresses the effect sizes of multiple studies on study-level covariates, called moderators, to explain why studies differ.
Meta-reinforcement learning
Meta-reinforcement learning (meta-RL) trains a reinforcement learning agent across a distribution of tasks so it can adapt to new tasks from small amounts of experience.
Meta-synthesis
Meta-synthesis is a family of methods for integrating the findings of multiple qualitative studies into broader interpretations, concepts, or theory, rather than pooling them statistically.