noun 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. - the general direction or arrangement of the fibrous elements in paper or wood: to saw across the grain
- 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. - the granular texture of a rock, mineral, etc
- the appearance of a rock, mineral, etc, determined by the size and arrangement of its constituents
8. - the outer (hair-side) layer of a hide or skin from which the hair or wool has been removed
- 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. 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 gr
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
verb (
mainly transitive)
24. (also intransitive) 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. - to remove the hair or wool from (a hide or skin) before tanning
- to raise the grain pattern on (leather)