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词汇 -tropic
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-tropic
suff.(后缀)
  1. Turning or changing in a specified way or in response to a specified stimulus:
    表示“转向,亲…性”:以特定的方式或对特定刺激加以反应而转向或转变的:
    heliotropic.
    向日性的
  2. Affecting or attracted to something specified:
    表示“被…影响的,被…吸引的”:
    gonadotropic.
    促性腺的

语源
  1. From Greek tropē [a turning] * see tropic
    源自 希腊语 tropē [转折] *参见 tropic
-tropic

combining form in adjective

turning or developing in response to a certain stimulus
heliotropic

Origin

from Greek tropos a turn; see trope

-tropic

Word Origin
1
a combining form with the meanings “turned toward, with an orientation toward” that specified by the initial element (geotropic), “having an affinity for, affecting” what is specified (lipotropic; neurotropic; psychotropic), “affecting the activity of, maintaining” a specified organ (gonadotropic).
Compare -trophic.
Origin
see tropic

Related Words

  • -tropy
  • adrenocorticotropic
  • aeolotropic
  • barotropic
  • chronotropic
  • cytotropic
-tropican adjectival word element corresponding to -trope, -tropism, as in geotropic.
-tropic
adjective combining form
 ETYMOLOGY  French -tropique, from Greek -tropos -tropous
1. turning, changing, or tending to turn or change in a (specified) manner or in response to a (specified) stimulus
    geotropic
2. attracted to or acting upon (something specified)
    neurotropic
-tropic
/ˈtrɒpɪk/  
combining form
1.
turning towards
表示“转向的”:

heliotropic.

2.
affecting
表示“影响的”:

psychotropic.

3.
(especially in names of hormones) equivalent to -TROPHIC.
[尤用于荷尔蒙名称]同-TROPHIC.
词源
from Greek tropē 'turn, turning'.
-tropic, suffix|ˈtrɒpɪk, ˈtrəʊpɪk|[f. Gr. τροπή turning (n.) + -ic.]Forming adjs. with the senses: (a) ‘turning or attracted towards’, as in geotropic, heliotropic, sympathicotropic adjs.; (b) ‘affecting’, as in neurotropic, psychotropic adjs. (in epithets of hormones used interchangeably with -trophic, q.v.).
-tropic /ˈtrəʊpɪk, ˈtrɒpɪk/ suffix.
ORIGIN: formed as tropic adjective3.
Forming adjectives with the senses: (a) (chiefly Biology) ‘turning or attracted towards’, as geotropic, heliotropic; (b) (chiefly Chemistry & Physics) ‘turning, changing’, as enantiotropic, thixotropic; (c) (chiefly Physiology) ‘affecting’, as neurotropic, psychotropic.
 NOTE  In epithets of hormones used interchangeably with -trophic 2.
-trop·ic
\.|träpik, -pēk, in some words -rōp-\ adjective combining form
Etymology: French -tropique, from -trope (I) + -ique -ic
1. : turning, changing, or tending to turn or change especially in a (specified) manner or in response to a (specified) stimulus
 < bacteriotropic >
 < enantiotropic >
 < geotropic >
 < heliotropic >
 < isotropic >
 < chemotropic >
2. : attracted specifically to (such) a tissue, organ, or system
 < neurotropic >
 < viscerotropic >
3. : -trophic 1
 < ectotropic >
 < endotropic >

-tropic

Suffix

  1. sciences turning or changing
  2. sciences affecting or attracted to the thing specified

Etymology

Borrowing from Ancient Greek τροπικός (tropikós, “of or pertaining to a turn or change; or the solstice; or a trope or figure; tropic; tropical; etc.”), from τροπή (tropḗ, “turn; solstice; trope”). Compare trope and tropic.

Usage notes

Frequently confused with -trophic (“growth, development; nutrition”), which is instead from Ancient Greek τροφικός (trophikós, “pertaining to food or nourishment”), from τροφή (trophḗ, “food”).[1] Compare tropic hormone (drives other glands) and trophic hormone (effects growth) and tropo-/tropho-.

Derived terms

English words suffixed with -tropic


Related terms

  • trope, -trope
  • tropic
  • tropism
  • -tropism
  • tropo-
  • -tropy
  • References

    1. ^ “Trophic vs. Tropic”, Werner Steinberg, JAMA, May 3, 1952, 149(1), p. 82, doi:10.1001/jama.1952.02930180084027.
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