All articles starting with M
36,687 articles
Multimedia over Coax Alliance
The Multimedia over Coax Alliance (MoCA) is a non-profit standards consortium founded in 2004 that develops and certifies specifications for multi-gigabit home and access networking over existing coaxial cable.
MultiMediaCard
The MultiMediaCard, or MMC card, is a removable flash memory card introduced by SanDisk and Siemens in November 1997; it was among the smallest flash cards of its time.
Multimeter
A multimeter, also called a volt-ohm meter, is an electronic test instrument that measures voltage, current, and resistance in one device; most modern meters are digital.
Multiminicore myopathy
Multiminicore myopathy, or multiminicore disease (MmD), is a rare congenital myopathy with multiple minicores on muscle biopsy, axial weakness, scoliosis, spinal rigidity, and respiratory insufficiency; SELENON and RYR1 variants cause about half of cases.
Multimodal contrastive learning
Multimodal contrastive learning is a machine learning approach that aligns embeddings of paired data, such as images and text, prominent through CLIP and ALIGN in 2021.
Multimodal Diffusion Transformer
The Multimodal Diffusion Transformer (MMDiT) is a transformer denoiser architecture introduced with Stable Diffusion 3 in 2024, replacing the U-Net with separate text and image weight streams.
Multimodal discourse analysis
Multimodal discourse analysis (MDA) is a method in linguistics and discourse studies for analyzing how meaning is constructed when language combines with images, gesture, sound, and layout.
Multimodal distribution
A multimodal distribution, or multimodal frequency distribution, is a probability distribution whose density has more than one mode, often signaling a mixture of subpopulations; the two-peak case is bimodal.
Multimodal logic
Multimodal logic is a modal logic with several modal operators, each with its own accessibility relation, built from unimodal components by combination methods such as fusion and product.
Multimodal transport
Multimodal transport is the carriage of goods or passengers using two or more transport modes, such as sea, road, rail, or air, under a single contract.
Multimode optical fiber
Multimode optical fiber is optical fiber with a large core, typically 50 or 62.5 µm, that guides many light paths over short distances such as data center links.
Multimodulus algorithm
The multimodulus algorithm (MMA) is a blind adaptive equalization algorithm introduced in 2002 that removes inter-symbol interference and recovers the carrier phase of QAM signals.
Multimorbidity
Multimorbidity, also called multiple chronic conditions (MCC), is the coexistence of two or more chronic conditions in one person; it affects over half of US adults, rises steeply with age, and is measured by counts or weighted indices.
Multinational Association of Supportive Care in Cancer
The Multinational Association of Supportive Care in Cancer (MASCC), founded in 1990, is an international organization advancing supportive cancer care with members in over 80 countries.
Multinational corporation
A multinational corporation, or MNC, is a company controlling production plants in at least two countries, accounting for roughly a third of world output and half of exports.
Multinational Maritime Defense Alliance
The Multinational Maritime Defense Alliance (MMDA) is a Saudi-led 14-nation defensive maritime coalition founded in Riyadh on 30 July 2026 to protect navigation, trade, and energy routes in the Bab al-Mandeb Strait, Red Sea, and Gulf of Aden amid Houthi attacks.
Multinational Security Support Mission in Haiti
The Multinational Security Support Mission in Haiti (MSS) was a Kenya-led police force authorized by the UN in 2023 to fight gangs, replaced in 2026.
Multinational state
A multinational state is a sovereign country containing two or more distinct nations, each with its own language, culture, and identity, in contrast to a nation-state; examples include Canada, Spain, and Belgium.
Multinomial distribution
The multinomial distribution is a discrete probability distribution giving the probability of counts across k mutually exclusive categories after n independent trials, each with fixed category probabilities.
Multinomial logistic regression
Multinomial logistic regression, also known as the multinomial logit or maximum entropy (MaxEnt) classifier, is a regression model for categorical outcomes with more than two unordered categories.
Multinomial model
The multinomial model is the standard probability model for counts of categorical outcomes: over n independent trials, each falls into one of k categories with fixed probabilities summing to one.
Multinomial probit
Multinomial probit is a discrete-choice regression model estimating probabilities of choosing among unordered categories, with multivariate normal errors that relax the IIA restriction of multinomial logit.
Multinomial theorem
The multinomial theorem, also called the multinomial formula, expands a power of a sum of any number of terms, generalizing the binomial theorem from two terms to k terms.
Multinuclear osteoclast
Multinuclear osteoclast, or multinucleated osteoclast: a bone-resorbing giant cell formed by fusion of mononuclear precursors under M-CSF and RANKL, requiring DC-STAMP and OC-STAMP, with resorptive efficiency rising with nuclearity.
Multinucleate cell
Multinucleate cell (syncytium, coenocyte): one cell with multiple nuclei in shared cytoplasm, formed by nuclear division without cytokinesis or by cell fusion; examples include myofibers, osteoclasts, and the placental syncytiotrophoblast.
Multinucleated giant cell
Multinucleated giant cell (MGC, polykaryon): fused macrophage-lineage cell with three subtypes, osteoclasts, foreign body giant cells, and Langhans giant cells, distinguished by nuclear arrangement, inducing cytokines, and markers.
Multinucleated neurons-anhydramnios-renal dysplasia-cerebellar hypoplasia-hydranencephaly syndrome
MARCH syndrome (OMIM 236500, ORPHA:500135) is a lethal autosomal recessive CEP55-related disorder with hydranencephaly, cerebellar hypoplasia, renal dysplasia, anhydramnios, Potter sequence, and multinucleated neurons.
Multiobjective evolutionary algorithm
A multiobjective evolutionary algorithm (MOEA) is a population-based optimization method that uses evolutionary search to approximate the Pareto front of problems with several conflicting objectives.
Multiomics
Multiomics: integrative analysis of genomics, transcriptomics, epigenomics, proteomics, and metabolomics data from the same samples. Covers early/late integration, VAEs, batch effects, TCGA cancer subtyping, and precision medicine applications.
Multiomics integration
Multiomics integration is a computational approach that jointly analyzes two or more omics data types, such as genomics, transcriptomics, and proteomics, to characterize biological systems.