spline (spl?n)n.1. a. Any of a series of projections on a shaft that fit into slots on a corresponding shaft, enabling both to rotate together.b. The groove or slot for such a projection.2. A flexible piece of wood, hard rubber, or metal used in drawing curves.3. A wooden or metal strip; a slat.[Origin unknown.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.spline (spla?n) n1. (Mechanical Engineering) any one of a series of narrow keys (external splines) formed longitudinally around the circumference of a shaft that fit into corresponding grooves (internal splines) in a mating part: used to prevent movement between two parts, esp in transmitting torque2. a long narrow strip of wood, metal, etc; slat3. (Building) a thin narrow strip made of wood, metal, or plastic fitted into a groove in the edge of a board, tile, etc, to connect it to anothervb (Building) (tr) to provide (a shaft, part, etc) with splines[C18: East Anglian dialect; perhaps related to Old English splin spindle; see splint]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014spline (spla?n) n. 1. a long, narrow, thin strip of wood, metal, etc.; slat. 2. a long, flexible strip of wood or the like, used in drawing curves. 3. any of a series of ridges on a shaft, parallel to its axis and fitting inside corresponding grooves in the hub of a gear, etc., to transmit torque. 4. a thin strip of material inserted into the edges of two boards, acoustic tiles, etc., to make a butt joint between them; feather. [1750?60; orig. East Anglian dial.; perhaps akin to splint] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.splinePast participle: splinedGerund: spliningImperativePresentPreteritePresent ContinuousPresent PerfectPast ContinuousPast PerfectFutureFuture PerfectFuture ContinuousPresent Perfect ContinuousFuture Perfect ContinuousPast Perfect ContinuousConditionalPast ConditionalImperativesplinesplinePresentI splineyou splinehe/she/it splineswe splineyou splinethey splinePreteriteI splinedyou splinedhe/she/it splinedwe splinedyou splinedthey splinedPresent ContinuousI am spliningyou are splininghe/she/it is spliningwe are spliningyou are spliningthey are spliningPresent PerfectI have splinedyou have splinedhe/she/it has splinedwe have splinedyou have splinedthey have splinedPast ContinuousI was spliningyou were splininghe/she/it was spliningwe were spliningyou were spliningthey were spliningPast PerfectI had splinedyou had splinedhe/she/it had splinedwe had splinedyou had splinedthey had splinedFutureI will splineyou will splinehe/she/it will splinewe will splineyou will splinethey will splineFuture PerfectI will have splinedyou will have splinedhe/she/it will have splinedwe will have splinedyou will have splinedthey will have splinedFuture ContinuousI will be spliningyou will be splininghe/she/it will be spliningwe will be spliningyou will be spliningthey will be spliningPresent Perfect ContinuousI have been spliningyou have been splininghe/she/it has been spliningwe have been spliningyou have been spliningthey have been spliningFuture Perfect ContinuousI will have been spliningyou will have been splininghe/she/it will have been spliningwe will have been spliningyou will have been spliningthey will have been spliningPast Perfect ContinuousI had been spliningyou had been splininghe/she/it had been spliningwe had been spliningyou had been spliningthey had been spliningConditionalI would splineyou would splinehe/she/it would splinewe would splineyou would splinethey would splinePast ConditionalI would have splinedyou would have splinedhe/she/it would have splinedwe would have splinedyou would have splinedthey would have splinedCollins English Verb Tables © HarperCollins Publishers 2011