grain (ɡreɪn) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) |
| |
| —n |
| 1. | the small hard seedlike fruit of a grass, esp a cereal plant |
| 2. | a mass of such fruits, esp when gathered for food |
| 3. | the plants, collectively, from which such fruits are harvested |
| 4. | a small hard particle: a grain of sand |
| 5. | a. the general direction or arrangement of the fibrous elements in paper or wood: to saw across the grain |
| | b. the pattern or texture of wood resulting from such an arrangement: the attractive grain of the table |
| 6. | the relative size of the particles of a substance: sugar of fine grain |
| 7. | a. the granular texture of a rock, mineral, etc |
| | b. the appearance of a rock, mineral, etc, determined by the size and arrangement of its constituents |
| 8. | a. the outer (hair-side) layer of a hide or skin from which the hair or wool has been removed |
| | b. the pattern on the outer surface of such a hide or skin |
| 9. | a surface artificially imitating the grain of wood, leather, stone, etc; graining |
| 10. | gr the smallest unit of weight in the avoirdupois, Troy, and apothecaries' systems, based on the average weight of a grain of wheat: in the avoirdupois system it equals 1/7000 of a pound, and in the Troy and apothecaries' systems it equals 1/5760 of a pound. 1 grain is equal to 0.0648 gram |
| 11. | Also called: metric grain a metric unit of weight used for pearls or diamonds, equal to 50 milligrams or one quarter of a carat |
| 12. | the threads or direction of threads in a woven fabric |
| 13. | photog any of a large number of particles in a photographic emulsion, the size of which limit the extent to which an image can be enlarged without serious loss of definition |
| 14. | television a granular effect in a television picture caused by electrical noise |
| 15. | cleavage lines in crystalline material, parallel to growth planes |
| 16. | chem any of a large number of small crystals forming a polycrystalline solid, each having a regular array of atoms that differs in orientation from that of the surrounding crystallites |
| 17. | a state of crystallization: to boil syrup to the grain |
| 18. | a very small amount: a grain of truth |
| 19. | natural disposition, inclination, or character (esp in the phrase go against the grain) |
| 20. | astronautics a homogenous mass of solid propellant in a form designed to give the required combustion characteristics for a particular rocket |
| 21. | (not in technical usage) kermes or a red dye made from this insect |
| 22. | dyeing an obsolete word for colour |
| 23. | with a grain of salt, with a pinch of salt without wholly believing: sceptically |
| |
| —vb |
| 24. | (also intr) to form grains or cause to form into grains; granulate; crystallize |
| 25. | to give a granular or roughened appearance or texture to |
| 26. | to paint, stain, etc, in imitation of the grain of wood or leather |
| 27. | a. to remove the hair or wool from (a hide or skin) before tanning |
| | b. to raise the grain pattern on (leather) |
| |
| [C13: from Old French, from Latin grānum] |
| |
| 'grainer |
| |
| —n |
| |
| 'grainless |
| |
| —adj |