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词汇 dextro-
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dextro- 或 dextr-
pref.（前缀）
  1. On or to the right; right:
    向右的；右边的：
    dextrorotation.
    向右旋转的
  2. Dextrorotatory:
    向右旋转的：
    dextrose.
    右旋糖

语源
  1. Latin
    拉丁语
  2. from dexter [on the right side]
    源自 dexter [在右边]
dextro- or (before a vowel) dextr-

combining form

on or towards the right
⇒ dextrorotation
chemistry. indicating a dextrorotatory compound
⇒ dextroglucose

Origin

from Latin, from dexter on the right side

dextro-

Word Origin
1
a combining form meaning “right,” used in the formation of compound words:
dextrorotatatory.
2
Chemistry. a combining form meaning “turning clockwise”:
dextroglucose.
Also, especially before a vowel, dextr-.
Origin
< Latin dextr-, stem of dexter right-hand + -o-, on the model of retro-

Related Words

  • dextroamphetamine
  • dextrocardia
  • dextroglucose
  • dextrorotatory
  • dextrosinistral
dextro-a word element meaning:
1. right.
2. Chemistry denoting a substance that rotates the plane of plane-polarised light to the right. Symbol: +
Also, dextr-. [Latin, combining form of dexter right]
dextro-
combining form
⇨ see dextr-
dextro-
/ˈdekstrəʊ/  
combining form
on or to the right
表示“（向）右边的”：

dextrorotatory.

词源
from Latin dexter, dextr- 'right'.
dextro-combining form of L. dexter, dextra, used in the sense ‘(turning or turned) to the right’, in physical and chemical terms, chiefly having reference to the property possessed by certain substances of causing the plane of a ray of polarized light to rotate to the right. Among these are: a. dextrogyre |ˈdɛkstrəʊdʒaɪə(r)| a. [L. gȳrus, Gr. γῦρος circuit], gyrating or circling to the right. dextroˈgyrate a. [L. gyrāt-us, pa. pple. of gȳrāre to wheel round], characterized by turning the plane of polarization to the right, as a dextrogyrate crystal. dextroˈgyrous a. = dextrogyre. dextro-roˈtation, rotation to the right. dextro-ˈrotatory a., having or producing rotation to the right; dextrogyrous.b. dextro-ˈcompound, a chemical compound which causes dextro-rotation. dextro-ˈglucose, the ordinary variety of glucose or grape-sugar, dextrose. dextro-raˈcemic, dextro-tarˈtaric acid, the modifications of racemic and tartaric acid which cause dextro-rotation. Hence dextro-racemate, -tartrate, the salts of these.a.1876Harley Mat. Med. 366 Called mycose, because it is rather less dextrogyre than cane sugar.1878Foster Phys. ii. i. 197 The solutions of both acids have a dextro-rotatory action on polarized light.1882Nature XXV. 283 With each electrode, diverging currents produce dextro- and converging ones lævo-rotation.1883Athenæum 29 Dec. 871/1 The dextrorotatory and optically inactive gums.1891Lancet 3 Oct. 751 The dextro-rotatory tartaric acid.b.1853Pharmac. Jrnl. XIII. 111 Pasteur discovered that racemic acid is a compound of two acids, one of which turns the plane of polarization of a ray of light to the right, and the other to the left; he therefore called them Dextro-racemic-acid and Levo-racemic-acid.Ibid. 112 A solution of dextro-racemate of soda and ammonia.Ibid. 377 The dextro-tartrate crystallizes out.1863–72Watts Dict. Chem. II. 855 Dextro-glucose occurs abundantly in sweet fruits, frequently together with cane sugar.1873Fownes' Chem. (ed. 11) 731 Dextrotartaric Acid is the acid of fruits.
dextro-
word-forming element meaning "toward or on the right-hand side," from comb. form of Latin dexter (see dexterity).
dextro- /ˈdɛkstrəʊ/ combining form.
ORIGIN: from Latin dexter, dextra right + -o-.
Turning or turned to the right; Chemistry dextrorotatory. Opp. laevo-.
 DERIVATIVE dextroˈcardia noun a congenital abnormality in which the disposition of the heart is reversed so that it occupies a mirror image of its normal position L19.
dextrotartaric adjective: dextrotartaric acid, the dextrorotatory (and predominant naturally occurring) form of tartaric acid L19.
dextroˈtartrate noun a dextrorotatory tartrate M19.
☞ dextro
dextro-
combining form
see dextr-

dextro-
  • dex-, dextr- (before a vowel)

    • Prefix

    1. Right; on the right; toward the right.
      dextroelevation, dextroposition, dextrosinistral
    2. chemistry Denoting a dextrorotatory form of an enantiomer.
      dextroamphetamine, dextropropoxyphene

    Etymology

    From Latin dexter (“right”).

    Synonyms

  • (denoting a dextrorotatory form): D- (abbreviation)

    • Antonyms

  • (left): levo-, sinistro-
  • (denoting a dextrorotatory form): levo-

    • Coordinate terms

  • (denoting a dextrorotatory form): race-

    • See also

    English words prefixed with dextro-
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    更新时间：2025/11/1 2:59:46