| 1. | a solid mass of wood, stone, etc., usually with one or more flat or approximately flat faces. |
| 2. | a hollow masonry building unit of cement, terra cotta, etc.: a wall made of concrete blocks. |
| 3. | one of a set of cube-shaped pieces of wood, plastic, or the like, used as a child's toy in building. |
| 4. | a mold or piece on which something is shaped or kept in shape: a hat block. |
| 5. | a piece of wood used in the art of making woodcuts or wood engravings. |
| 6. | Printing. the base on which a plate is mounted to make it type-high. |
| 7. | a projection left on a squared stone to provide a means of lifting it. |
| 8. | a short length of plank serving as a bridging, as between joists. |
| 9. | a stump or wooden structure on which a condemned person is beheaded: Mary Stuart went bravely to the block. |
| 10. | auction block. |
| 11. | Machinery. a part enclosing one or more freely rotating, grooved pulleys, about which ropes or chains pass to form a hoisting or hauling tackle. |
| 12. | an obstacle, obstruction, or hindrance: His stubbornness is a block to all my efforts. |
| 13. | the state or condition of being obstructed; blockage: The traffic block lasted several hours. |
| 14. | Pathology.
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| 15. | Sports. a hindering of an opponent's actions. |
| 16. | a quantity, portion, or section taken as a unit or dealt with at one time: a large block of theater tickets. |
| 17. | a small section of a city, town, etc., enclosed by neighboring and intersecting streets: She lives on my block. |
| 18. | the length of one side of such a section: We walked two blocks over. |
| 19. | Chiefly British. a large building divided into separate apartments, offices, shops, etc. |
| 20. | a large number of bonds or shares of stock sold together as a single unit. |
| 21. | Computers.
|
| 22. | Railroads. any of the short lengths into which a track is divided for signaling purposes. |
| 23. | Philately. a group of four or more unseparated stamps, not in a strip. |
| 24. | Slang. a person's head. |
| 25. | Glassmaking. a wooden or metal cup for blocking a gather. |
| 26. | an obstruction or stoppage in mental processes or speech, esp. when related to stress, emotional conflict, etc. |
| 27. | writer's block. |
| 28. | Geology.
|
| 29. | (in Canada) a wild or remote area of land that has not yet been surveyed: the Peace River block. |
| 30. | Automotive. cylinder block. |
| 31. | Falconry. a low perch to which a falcon is tethered outdoors. |
| 32. | to obstruct (someone or something) by placing obstacles in the way (sometimes fol. by up): to block one's exit; to block up a passage. |
| 33. | to fit with blocks; mount on a block. |
| 34. | to shape or prepare on or with a block: to block a hat; to block a sweater. |
| 35. | to join (the ends of boards or the like) by fastening to a block of wood. |
| 36. | Theater.
|
| 37. | Pathology, Physiology. to stop the passage of impulses in (a nerve). |
| 38. | Computers. to group (contiguous data) together so as to allow to be read or written in a single operation. |
| 39. | Sports. to hinder or bar the actions or movements of (an opposing player), esp. legitimately. |
| 40. | Glassmaking.
|
| 41. | Metalworking. to give (a forging) a rough form before finishing. |
| 42. | Electronics. to apply a high negative bias to the grid of (a vacuum tube), for reducing the plate current to zero. |
| 43. | to act so as to obstruct an opponent, as in football, hockey, and basketball: He doesn't get many baskets, but he sure can block. |
| 44. | Theater. to block a play, act, scene, stage, etc.: The director will block tomorrow. |
| 45. | to suffer a block. |
| 46. | block in or out, to sketch or outline roughly or generally, without details: She blocked out a color scheme for the interiors. |
| 47. | block out,
|
| 48. | put or go on the block, to offer or be offered for sale at auction: to put family heirlooms on the block. |
| 1. | Also called block. a platform from which an auctioneer sells: the old courthouse where slaves were sold from the auction block. |
| 2. | put on the auction block, to offer for sale at auction; offer to sell to the highest bidder. |

| the metal casting in which the cylinders of an internal-combustion engine are bored. |
block (blŏk) n.
v. tr.
block out
Idiom(s): go on the blockTo be offered for sale. Idiom(s): out of the blocksFrom a starting position, as in a race or contest: The company has in the past been slow out of the blocks to adapt to consumer tastes. Idiom(s): put on the blockTo offer for sale. [Middle English blok, from Old French bloc, from Middle Dutch.] block'er n. Synonyms: These verbs mean to cut off from sight: a tree that blocked the view; a road hidden by brush; mist that obscured the mountain peak; skyscrapers obstructing the sky; a fence that screens the alley; a face shrouded by a heavy veil. See Also Synonyms at hinder1, obstacle. |
block
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Block
A large amount of the same security bought or sold by institutional or other large investors. There is no official size designation constituting a block of securities, but a commonly used threshold is more than10,000 equity shares or more than $200,000 of debt securities.
Investopedia Commentary
Blocks of securities are traded in what are called "block trades" and serve to facilitate trades involving institutional investors or other large investors who require such bulk trades to meet their needs.
Related Links
Keeping An Eye On The Activities Of Insiders And Institutions
Uncovering The Securities Firm
See also: Block Trade, Bunching, Elephants, Iceberg Order, Institutional Investor
Also spelled: blocks
block
block (blŏk)
n.
Interruption, especially obstruction, of a normal physiological function.
Interruption, complete or partial, permanent or temporary, of the passage of a nervous impulse.
Atrioventricular block.
Sudden cessation of speech or a thought process without an immediate observable cause, sometimes considered a consequence of repression.
block
1.
Compare record, sector.
(2000-07-17)
2.
Compare busy-wait.
(2000-07-17)
3.
(2004-09-29)
block
see chip off the old block; knock someone's block off; on the block; stumbling block.