| 释义 |
-blast
-blast(word root) budExamples of words with the root -blast: ectoblast-blastsuff.1. Biology An immature, embryonic stage in the development of cells or tissues: erythroblast.2. Geology A crystal or mineral deposit formed in metamorphic rock: porphyroblast.
[From Greek blastos, bud, germ, of unknown origin.]-blast n combining form (in biology) indicating an embryonic cell or formative layer: mesoblast. [from Greek blastos bud]blast (blæst, blɑst)
n. 1. a sudden and violent gust of wind. 2. the blowing of a trumpet, whistle, etc. 3. a loud, sudden sound or noise: a harsh blast from the radio. 4. a forcible stream of air from the mouth, bellows, or the like. 5. a. air forced into a furnace by a blower to increase the rate of combustion. b. a jet of steam directed up a smokestack, as of a steam locomotive, to increase draft. 6. a forceful throw, hit, etc.: a blast down to third base. 7. Slang. something that gives great pleasure, esp. a party. 8. a vigorous outburst of criticism; attack. 9. the charge explosive used at one firing in blasting operations. 10. the act of exploding; explosion. 11. any pernicious or destructive influence, esp. on animals or plants; a blight. 12. the sudden death of buds, flowers, or young fruit. v.t. 13. to make a loud noise on; blow: to blast a horn. 14. to cause to shrivel or wither. 15. to ruin; destroy. 16. to shatter by or as if by an explosion. 17. to make, form, or open up by blasting: to blast a tunnel. 18. to curse; damn: Blast it, there's the phone again! 19. to criticize vigorously; denounce. 20. to hit or propel with great force. 21. to shoot. v.i. 22. to produce a loud, blaring sound. 23. to shoot. 24. to use or detonate explosives, as a charge of dynamite. 25. blast off, a. (of a self-propelled rocket) to leave a launch pad. b. (of an astronaut) to travel aloft in a rocket. Idioms: (at) full blast, at maximum capacity; at or with full volume or speed. [before 1000; Middle English; Old English blǣst a blowing] blast′er, n. blast′y, adj. syn: See wind1. -blast var. of blasto- as a final element: ectoblast. EncyclopediaSeeblast-blast
-blast (blast), An immature precursor cell of the type indicated by the prefix. preceding it. [G. blastos, germ] -blastsuff.1. Biology An immature, embryonic stage in the development of cells or tissues: erythroblast.2. Geology A crystal or mineral deposit formed in metamorphic rock: porphyroblast.-blast A suffix meaning an immature precursor cell of the type indicated by the preceding word. [G. blastos, germ]-blast suffix denoting an undifferentiated CELL, capable of division. For example ERYTHROBLAST is a bone marrow cell that will form a red blood cell. Compare ERYTHROCYTE, which is a mature red blood cell (see -CYTE). |