sinistral

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sin·is·tral

 (sĭn′ĭ-strəl, sĭ-nĭs′trəl)
adj.
1. Of or facing the left side.
2. Left-handed.
3. Zoology Relating to or being a gastropod shell that has its aperture to the left when facing the observer with the apex upward.
sin′is·tral·ly adv.
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.

sinistral

(ˈsɪnɪstrəl)
adj
1. (Anatomy) of, relating to, or located on the left side, esp the left side of the body
2. a technical term for left-handed
3. (Zoology) (of the shells of certain gastropod molluscs) coiling in a clockwise direction from the apex
[C15 (in the obsolete sense: adverse, evil); C19 (in current senses): from Medieval Latin sinistrālis. See sinister]
ˈsinistrally adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

sin•is•tral

(ˈsɪn ə strəl)

adj.
1. of, pertaining to, or on the left side; left.
2. having a preference for using the left hand or side; left-handed.
3. (of certain gastropod shells) coiling counterclockwise, as seen from the apex.
Compare dextral.
[1425–75; < Medieval Latin sinistrālis. See sinister, -al1]
sin`is•tral′i•ty, n.
sin′is•tral•ly, adv.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.sinistral - of or on the left; "a sinistral gastropod shell with the apex upward has its opening on the left when facing the observer"; "a sinistral flatfish lies with the left eye uppermost"
anticlockwise, contraclockwise, counterclockwise - in the direction opposite to the rotation of the hands of a clock
left-handed - using or intended for the left hand; "left-handed golfers need left-handed clubs"; "left-handed scissors"
dextral - of or on the right; "a dextral gastropod shell with the apex upward has its opening on the right when facing the observer"; "a dextral flatfish lies with the right eye uppermost"
2.sinistral - preferring to use left foot or hand or eye; "sinistral individuals exhibit dominance of the left hand and eye"
left-handed - using or intended for the left hand; "left-handed golfers need left-handed clubs"; "left-handed scissors"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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References in periodicals archive ?
Dr Christy Omidiji, a social worker, urged schools to encourage the establishment of association of sinistrals, where they could brainstorm and develop so many interventions for their successes and achievements in schools.
CHILD experts have advised parents against force switching their sinistral (left-handed) children to avoid causing injuries to the development of their healthy brain functions.
Sinistral children: Experts advise against force switching
Neuromagnetic fields preceding unilateral movements in dextrals and sinistrals. Neuroreport.
Does motor lateralization have implications for stroke rehabilitation?
Although it would have been preferential to test an equal number of dextrals and sinistrals and subsequently analyze the data with handedness as a between-groups factor, this was not logistically pos sible.
Asymmetric Performance in the Cocktail Party Effect: Implications for the Design of Spatial Audio Displays
As has often been observed, the great majority of sinistral individuals have two dextral parents and even persons with two sinistral parents have less than a 50 % chance of being sinistrals themselves.
Thus, a two-factor theory might be that some persons, more often females than males (Ashton, 1982; McKeever et al., 1995), are sinistrals because of developmental instability or birth stress factors.
A new family handedness sample with findings consistent with X-linked transmission
Since then we've had other notable sinistrals such as Gerald Ford, Nelson Rockefeller, and George Bush.
Helping your lefthanded child cope in a righthanded world
It should be noted, as well, that studies in which sinistral individuals were included have found significantly better SIBT performances for dextrals than for sinistrals (McKeever, 1986; Rich & McKeever, 1990).
More recently (1992), she has refined a classification scheme having four dextral and three sinistral classes, where group assignment is dependent on individuals' hand preferences for the manual activities included in the Annett Handedness Inventory (AHI).
Failure to support the right-shift theory's hypothesis of a `heterozygote advantage' for cognitive abilities
There is a linear trend that educational achievement is lowest in quartile 1 (the most sinistrals) and rises with degree of right handedness.
Testing the hypothesis of the relationships between laterality and ability according to Annett's right-shift theory: findings in an epidemiological sample of young adults

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