essential 音标拼音: [ɪs'ɛnʃəl] [is'ɛnʃəl] [əs'ɛntʃəl] [is'ɛntʃəl]
a . 必要的,必不可少的;本质的,基本的
n . 要素,要点
必要的,必不可少的;本质的,基本的要素,要点
essential *本质 基本的
essential adj 1 :
absolutely necessary ;
vitally necessary ; "
essential tools and materials "; "
funds essential to the completion of the project "; "
an indispensable worker " [
synonym : {
essential },
{
indispensable }]
2 :
basic and fundamental ; "
the essential feature " [
ant :
{
inessential }, {
unessential }]
3 :
of the greatest importance ; "
the all -
important subject of disarmament "; "
crucial information "; "
in chess cool nerves are of the essence " [
synonym : {
all -
important (
a )}, {
all important (
p )}, {
crucial }, {
essential }, {
of the essence (
p )}]
4 :
being or relating to or containing the essence of a plant etc ; "
essential oil "
5 :
defining rights and duties as opposed to giving the rules by which rights and duties are established ; "
substantive law "
[
synonym : {
substantive }, {
essential }] [
ant : {
adjective },
{
procedural }]
n 1 :
anything indispensable ; "
food and shelter are necessities of life "; "
the essentials of the good life "; "
allow farmers to buy their requirements under favorable conditions "; "
a place where the requisites of water fuel and fodder can be obtained " [
synonym : {
necessity }, {
essential }, {
requirement },
{
requisite }, {
necessary }] [
ant : {
inessential },
{
nonessential }]
Essential \
Es *
sen "
tial \ ([
e ^]
s *
s [
e ^]
n "
sjal ),
a . [
Cf .
F .
essentiel .
See {
Essence }.]
1 .
Belonging to the essence ,
or that which makes an object ,
or class of objects ,
what it is .
[
1913 Webster ]
Majestic as the voice sometimes became ,
there was forever in it an essential character of plaintiveness . --
Hawthorne .
[
1913 Webster ]
2 .
Hence ,
really existing ;
existent .
[
1913 Webster ]
Is it true ,
that thou art but a name ,
And no essential thing ? --
Webster (
1623 ).
[
1913 Webster ]
3 .
Important in the highest degree ;
indispensable to the attainment of an object ;
indispensably necessary .
[
1913 Webster ]
Judgment '
s more essential to a general Than courage . --
Denham .
[
1913 Webster ]
How to live ? --
that is the essential question for us . --
H .
Spencer .
[
1913 Webster ]
4 .
Containing the essence or characteristic portion of a substance ,
as of a plant ;
highly rectified ;
pure ;
hence ,
unmixed ;
as ,
an essential oil . "
Mine own essential horror ." --
Ford .
[
1913 Webster ]
5 . (
Mus .)
Necessary ;
indispensable ; --
said of those tones which constitute a chord ,
in distinction from ornamental or passing tones .
[
1913 Webster ]
6 . (
Med .)
Idiopathic ;
independent of other diseases .
[
1913 Webster ]
{
Essential character } (
Biol .),
the prominent characteristics which serve to distinguish one genus ,
species ,
etc .,
from another .
{
Essential disease }, {
Essential fever } (
Med .),
one that is not dependent on another .
{
Essential oils } (
Chem .),
a class of volatile oils ,
extracted from plants ,
fruits ,
or flowers ,
having each its characteristic odor ,
and hot burning taste .
They are used in essences ,
perfumery ,
etc .,
and include many varieties of compounds ;
as {
lemon oil }
is a terpene , {
oil of bitter almonds }
an aldehyde , {
oil of wintergreen }
an ethereal salt ,
etc .; --
called also {
volatile oils }
in distinction from the fixed or nonvolatile .
[
1913 Webster ]
Essential \
Es *
sen "
tial \ ([
e ^]
s *
s [
e ^]
n "
sjal ),
n .
1 .
Existence ;
being . [
Obs .] --
Milton .
[
1913 Webster ]
2 .
That which is essential ;
first or constituent principle ;
as ,
the essentials of religion .
[
1913 Webster ]
183 Moby Thesaurus words for "
essential ":
ab ovo ,
austere ,
axiom ,
bare ,
bare necessities ,
basal ,
basic ,
basilar ,
bedrock ,
bench mark ,
brass tacks ,
call for ,
called for ,
capital ,
cardinal ,
cardinal point ,
center ,
central ,
chaste ,
chief ,
chief thing ,
climax ,
condition ,
congenital ,
connate ,
constituent ,
constitutional ,
constitutive ,
core ,
cornerstone ,
crisis ,
critical point ,
crux ,
deep -
seated ,
demand ,
demand for ,
desideration ,
desideratum ,
element ,
elemental ,
elementary ,
elixir ,
essence ,
essential facts ,
essential matter ,
essentials ,
flower ,
focal ,
focus ,
foremost ,
fundamental ,
gist ,
gravamen ,
great point ,
gut ,
heart ,
high point ,
homely ,
homespun ,
homogeneous ,
hypostasis ,
imperative ,
important ,
important thing ,
inborn ,
inbred ,
indicated ,
indispensable ,
indivisible ,
innate ,
inner essence ,
intrinsic ,
irreducible ,
irreductible ,
irreplaceable ,
issue ,
kernel ,
key ,
keystone ,
landmark ,
leading ,
life -
and -
death ,
life -
or -
death ,
main ,
main point ,
main thing ,
marrow ,
material ,
material point ,
meat ,
mere ,
milestone ,
monolithic ,
must ,
must item ,
necessaries ,
necessary ,
necessities ,
necessitous ,
necessity ,
need ,
need for ,
needed ,
needful ,
nub ,
nucleus ,
nuts and bolts ,
occasion ,
of a piece ,
of the essence ,
of vital importance ,
original ,
part and parcel ,
pith ,
pivot ,
plain ,
postulate ,
prerequirement ,
prerequisite ,
primal ,
primary ,
prime ,
primitive ,
principal ,
principle ,
pure ,
pure and simple ,
quid ,
quiddity ,
quintessence ,
quintessential ,
radical ,
real issue ,
required ,
requirement ,
requisite ,
requisition ,
right -
hand ,
rudiment ,
rudimentary ,
salient point ,
sap ,
severe ,
simon -
pure ,
simple ,
sine qua non ,
single ,
soul ,
spare ,
spirit ,
stark ,
stuff ,
substance ,
substantial ,
substantive ,
substantive point ,
the bottom line ,
the data ,
the details ,
the dope ,
the facts ,
the information ,
the necessary ,
the needful ,
the nitty -
gritty ,
the particulars ,
the picture ,
the point ,
the scoop ,
the score ,
the specifics ,
the whole story ,
turning point ,
unadorned ,
uncluttered ,
underlying ,
undifferenced ,
undifferentiated ,
unforgoable ,
uniform ,
vital ,
want ,
wanted
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