rational 音標拼音: [r'æʃənəl] [r'æʃnəl]
a . 理性的,合理的,推理的
n . 有理數
理性的,合理的,推理的有理數
rational 有理
rational adj 1 :
consistent with or based on or using reason ; "
rational behavior "; "
a process of rational inference "; "
rational thought " [
ant : {
irrational }]
2 :
of or associated with or requiring the use of the mind ;
"
intellectual problems "; "
the triumph of the rational over the animal side of man " [
synonym : {
intellectual }, {
rational },
{
noetic }]
3 :
capable of being expressed as a quotient of integers ;
"
rational numbers " [
ant : {
irrational }]
4 :
having its source in or being guided by the intellect (
as distinguished from experience or emotion ); "
a rational analysis "
n 1 :
an integer or a fraction [
synonym : {
rational number },
{
rational }]
Rational \
Ra "
tion *
al \ (
r [
a ^]
sh "[
u ^]
n *
al ),
a . [
L .
rationalis :
cf .
F .
rationnel .
See {
Ratio }, {
Reason },
and cf . {
Rationale }.]
1 .
Relating to the reason ;
not physical ;
mental .
[
1913 Webster ]
Moral philosophy was his chiefest end ;
for the rational ,
the natural ,
and mathematics . . .
were but simple pastimes in comparison of the other .
--
Sir T .
North .
[
1913 Webster ]
2 .
Having reason ,
or the faculty of reasoning ;
endowed with reason or understanding ;
reasoning .
[
1913 Webster ]
It is our glory and happiness to have a rational nature . --
Law .
[
1913 Webster ]
3 .
Agreeable to reason ;
not absurd ,
preposterous ,
extravagant ,
foolish ,
fanciful ,
or the like ;
wise ;
judicious ;
as ,
rational conduct ;
a rational man .
[
1913 Webster ]
4 . (
Chem .)
Expressing the type ,
structure ,
relations ,
and reactions of a compound ;
graphic ; --
said of formulae .
See under {
Formula }.
[
1913 Webster ]
{
Rational horizon }. (
Astron .)
See {
Horizon },
2 (
b ) .
{
Rational quantity } (
Alg .),
one that can be expressed without the use of a radical sign ,
or in exact parts of unity ; --
opposed to {
irrational }
or {
radical quantity }.
{
Rational symptom } (
Med .),
one elicited by the statements of the patient himself and not as the result of a physical examination .
[
1913 Webster ]
Syn :
Sane ;
sound ;
intelligent ;
reasonable ;
sensible ;
wise ;
discreet ;
judicious .
Usage : {
Rational }, {
reasonable }.
Rational has reference to reason as a faculty of the mind ,
and is opposed to irrational ;
as ,
a rational being ,
a rational state of mind ,
rational views ,
etc .
In these cases the speculative reason is more particularly ,
referred to .
Reasonable has reference to the exercise of this faculty for practical purposes ,
and means ,
governed or directed by reason ;
as ,
reasonable desires or plans ;
a reasonable charge ;
a reasonable prospect of success .
[
1913 Webster ]
What higher in her society thou find '
st Attractive ,
human ,
rational ,
love still .
--
Milton .
[
1913 Webster ]
A law may be reasonable in itself ,
although a man does not allow it ,
or does not know the reason of the lawgivers . --
Swift .
[
1913 Webster ]
Rational \
Ra "
tion *
al \,
n .
A rational being . --
Young .
[
1913 Webster ]
140 Moby Thesaurus words for "
rational ":
acceptable ,
admissible ,
algorismic ,
algorithmic ,
aliquot ,
all there ,
analytic ,
balanced ,
bright ,
calm ,
cardinal ,
cerebral ,
circumspect ,
clear -
eyed ,
clearheaded ,
clearminded ,
cogent ,
commonsense ,
compos mentis ,
conceptive ,
conceptual ,
consequent ,
cool ,
coolheaded ,
credible ,
decimal ,
differential ,
digital ,
discriminating ,
discursive ,
down -
to -
earth ,
earthy ,
endopsychic ,
enlightened ,
even ,
everyday ,
exponential ,
figural ,
figurate ,
figurative ,
finite ,
fractional ,
hardheaded ,
healthy -
minded ,
ideational ,
imaginary ,
impair ,
impossible ,
infinite ,
informed ,
integral ,
intellectual ,
intelligent ,
internal ,
irrational ,
judicious ,
just ,
justifiable ,
knowing ,
knowledgeable ,
legitimate ,
level -
headed ,
levelheaded ,
logarithmic ,
logical ,
logometric ,
lucid ,
matter -
of -
fact ,
mental ,
mentally sound ,
negative ,
noetic ,
noological ,
normal ,
not so dumb ,
numeral ,
numerary ,
numerative ,
numeric ,
odd ,
of sound mind ,
ordinal ,
pair ,
philosophical ,
phrenic ,
plausible ,
positive ,
positivistic ,
possible ,
practical ,
practical -
minded ,
pragmatic ,
prime ,
prudent ,
psychic ,
psychologic ,
radical ,
ratiocinative ,
ratiocinatory ,
real ,
realist ,
realistic ,
reasonable ,
reasoning ,
reciprocal ,
right ,
sane ,
sane -
minded ,
scientific ,
scientistic ,
secular ,
sensible ,
sober ,
sober -
minded ,
sophic ,
sound ,
sound -
minded ,
sound -
thinking ,
spiritual ,
stable ,
straight -
thinking ,
strong -
minded ,
subjective ,
submultiple ,
surd ,
thinking ,
together ,
transcendental ,
understanding ,
unideal ,
unidealistic ,
unromantic ,
unsentimental ,
well -
argued ,
well -
balanced ,
well -
founded ,
well -
grounded ,
wholesome ,
wise ,
worldly
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