-tropic
suff.（后缀）
语源
suff.（后缀）
- 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 - Affecting or attracted to something specified:
表示“被…影响的，被…吸引的”：
gonadotropic.
促性腺的
语源
- 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
geotropic
2. attracted to or acting upon (something specified)
neurotropic
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) stimulusgeotropic
2. attracted to or acting upon (something specified)
neurotropic
-tropic
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'.
ORIGIN: formed as tropic adjective
-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 >
1.
< bacteriotropic >
< enantiotropic >
< geotropic >
< heliotropic >
< isotropic >
< chemotropic >
2.
< neurotropic >
< viscerotropic >
3.
< ectotropic >
< endotropic >
-tropic
Suffix
- sciences turning or changing
- 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
References
- ^ “Trophic vs. Tropic”, Werner Steinberg, JAMA, May 3, 1952, 149(1), p. 82, doi:10.1001/jama.1952.02930180084027.