GBM

• Glioblastoma multiforme, an outdated term for glioblastoma
• Glomerular basement membrane

• Gateway belief model, a model in psychology and the communication sciences
• Geometric Brownian motion, continuous stochastic process where the logarithm of a variable follows a Brownian movement, that is a Wiener process
• Gradient boosting, a machine learning technique
• Generic Buffer Management, a graphics API
• Gamma-ray Burst Monitor, aboard the Fermi Gamma-ray Space Telescope
• Game Boy Micro, a 2005 handheld game console and the last model in the Game Boy line

• Grand Besançon Métropole, a French intercommunal structure
• GBM (League of Legends player) (born 1994), Korean video gamer
• Geoffrey Bwalya Mwamba (born 1959), Zambian politician
• Garbaharey Airport, in Somalia
• Garhwali language
• Grand Bauhinia Medal, an honour of Hong Kong
• Greater Britain Movement, a short-lived far-right group
• Green Belt Movement, a Kenyan environmental organisation

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