dextral

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dextral
dextral, a. (and n.) (ˈdɛkstrəl) [f. L. dextra right hand + -al1. Late L. has dextrālis, dextrāle as ns.] 1. a. Situated on the right side of the body; right, as opposed to left.1646 Sir T. Browne Pseud. Ep. iv. v. 188 Which should hinder the Liver from enabling the dextrall parts. 1794 Mathias Purs... Oxford English Dictionary
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Neoplanorbis
The shell is carried upside down with the aperture on the right, and this makes it appear to be dextral. Note that Pilsbry described the shell as if it were dextral, whereas planorbids are now known to be sinistral in shell coiling. wikipedia.org
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dexiotropic
dexiotropic, a. (ˌdɛksɪəʊˈtrɒpɪk) [f. as prec. + -ic: cf. Gr. τροπικός having a turning, inclined.] Turning or turned to the right: said spec. of those ‘reversed’ Gastropod Molluscs in which the spire turns to the right; opposed to leiotropic. The terms leiotropic and dexiotropic as used by Ray Lank... Oxford English Dictionary
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Neoplanorbis umbilicatus
The shells of this species appear to be dextral in coiling, but as is the case in all planorbids, the shell is actually sinistral. The shell was carried upside down with the aperture on the right, and this makes it appear to be dextral. wikipedia.org
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dextrally
dextrally, adv. (ˈdɛkstrəlɪ) [f. dextral a. + -ly2.] In a dextral way or direction; to the right, as opposed to the left.1881 Le Conte Monoc. Vision 19 To rotate it on its axis outward, i.e. dextrally—or like the hands of a watch. 1883 Journ. Bot. Brit. & For. 237 The spathes..are rolled up indiffer... Oxford English Dictionary
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dextrad
dextrad, adv. and a. (ˈdɛkstræd) [f. L. dextra right hand + -ad suffix proposed by Barclay in sense toward.] To or toward the right side of the body; dextrally.1803 J. Barclay New Anatomical Nomencl. 165–6 The new terms by a change of termination, may be used adverbially..Dextrad will signify toward... Oxford English Dictionary
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Are there dextral/sinistral higher animals? For example, almost every dog I've met in my life (more than 20 subjects) uses their right paw touching one while asking for attention. Can it be used as a criterion for cal...
Handedness has been studied in several different species of toads. As basal tetrapods, the authors argue that these taxa are unlikely to be influenced by human hand dominance and are thus a better model for studying the evolution of handedness. Bisazza et al. (1997) studied "pawedness" in _Bufo bufo...
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Ayna
This means that some specimens have sinistral (left-coiled), others dextral (right-coiled) shells. The sinistral and dextral specimens form "clear" populations but can by found sympatrically as well. wikipedia.org
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sinistral
sinistral, a. (ˈsɪnɪstrəl) Also 5 sinistralle, 6 synys-, synis-, sinistrall. [a. OF. sinistral (senestral), or ad. med.L. *sinistrālis: see sinister and -al1.] I. † 1. Adverse; unlucky. Obs. rare.c 1475 Harl. Contin. Higden (Rolls) VIII. 445 Dredynge not sinistralle fortune in batells. † 2. Likely, ... Oxford English Dictionary
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dextralize
† ˈdextralize, v. Obs. rare. [f. dextral a. + -ize.] trans. To make a ‘right’ hand or ‘right’ side of; hence to use in preference to the other.1651 Biggs New Disp. ¶196 Dextralize and preferre it before their laxatives. Oxford English Dictionary
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菱蜗牛属
多数物种的壳形为右旋(Dextral),少数为左旋(Sinistral)。 Luchuhadra (Kuroda & Habe, 1949) 为分布在琉球群岛的一群树栖性蜗牛。分子亲缘关系不支持独立一属,现归类在栗蜗牛属(学名:)内,各物种实际的地理分布也经过校正。 wikipedia.org
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Macluritoidea
Coiling is dextral, although it appears sinistral, deduced from the position of the channel (presumed to be exhalent) contained in a ridge or keel (a selenizone This is supported by the operculum of Maclurites, which corresponds to that of dextral gastropods. wikipedia.org
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背单词软件有什么推荐?
其实我挺怕G,经常听一个段子:蜗牛有右旋纹路的,也有左旋纹路的,在G的阅读中右旋纹路蜗牛有个专有名词(dextral),左旋纹路蜗牛有另一个专有名词(sinistral)。一想到这TMD都要考就觉得人生无望了。但既然选择了远方就只顾风雨兼程了,拿起单词书开始背吧。 zhihu
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Neoplanorbis smithi
The shells of this species appear to be dextral in coiling, but as is the case in all planorbids, the shell is actually sinistral. In life the shell was carried upside down with the aperture on the right, and this makes it appear to be dextral. wikipedia.org
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Left-right asymmetry
While dextral coiling is the most common as it appears in 90-99% of living species, sinistral species still have arisen many times. Dextral embryos treated with drugs that inhibited formin activity phenocopied the sinistral condition. wikipedia.org
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