Volcanic Block

Science / Geology / Volcanic Block: A pyroclastic rock fragment ranging from about fist- to car-sized.

Other Words for Block

Block Verb Synonyms: obstruct, close off, barricade, bar, shut off, hinder, hamper, balk, impede, prevent
Block Noun Synonyms: piece, chunk, hunk, lump, slab, stump, brick, cube
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PIN Unblocking Key (PUK)

Technology / Cell Phones / PIN Unblocking Key (PUK): If a GSM or GAIT subscriber enters the wrong PIN three times in a row, then the wireless mobile phone is locked until the PUK is entered. MORE

Omega Block

Science / Weather / Omega Block: A warm high aloft which has become displaced and is on the polarward side of the jet stream. It frequently occurs in the late winter and early spring in the Northern Hemisphere. The name comes from it MORE

Lot-And-Block (Recorded Plat) System

Business / Real Estate / Lot-And-Block (Recorded Plat) System: A method of describing real property that identifies a parcel of land by reference to lot and block numbers within a subdivision, as specified on a recorded subdivision plat. MORE

Puerto Rico Block Grant

Business / Agriculture / Puerto Rico Block Grant: A federal nutrition assistance grant program provided in lieu of the regular food stamp program in Puerto Rico. MORE

Reverse Block

Entertainment / Bowling / Reverse Block: For most people, a very difficult lane condition in which the boards closer to the gutter are heavily oiled, while those in the center are dry. The difficulty is that if the ball is thrown in the cent MORE

Shear Block

Business / Construction / Shear Block: Plywood that is face nailed to short (2 X 4's or 2 X 6's) wall studs (above a door or window, for example). This is done to prevent the wall from sliding and collapsing. MORE

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