| 单词 | saccade |
| 释义 | saccade[ sa-kahd, suh- ] / sæˈkɑd, sə- / nounthe act of checking a horse quickly with a single strong pull of the reins. Ophthalmology. the series of small, jerky movements of the eyes when changing focus from one point to another. Origin of saccade1720–30; <French saccade jerk, jolt, originally, movement of a horseman who abruptly pulls the reins, equivalent to Middle French saqu(er) to pull violently (N dialectal variant of Old French sachier, ultimately derivative of sacsack1, hence presumably with sense “withdraw from a sack”) + -ade-ade1 Words nearby saccadesac, Sacajawea, sac-a-lait, sacaton, SACC, saccade, saccadic, saccate, sacchar-, saccharase, saccharate Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for saccadesaccade / (səˈkɑːd, -ˈkeɪd) / nounthe movement of the eye when it makes a sudden change of fixation, as in reading a sudden check given to a horse Word Origin for saccadeC18: from French: a jerk on the reins of a horse Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for saccadesaccade [ să-käd′, sə- ] n.A rapid intermittent eye movement, as that which occurs when the eyes fix on one point after another in the visual field. Other words from saccadesac•cad′ic (-kä′dĭk) adj.The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |
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