hydr-
pref.（前缀）
pref.（前缀）
- Variant of hydro-
hydro-的变体
hydr-
combining form
a variant of hydro-
hydro- or (sometimes before a vowel) hydr-
combining form
indicating or denoting water, liquid, or fluid
⇒
hydrolysis
⇒
hydrodynamics
indicating the presence of hydrogen in a chemical compound
⇒
hydrochloric acid
indicating a hydroid
⇒
hydrozoan
Origin
from Greek hudōr waterhydr-1
1
variant of hydro-1. before a vowel:
hydrant.
hydr-2
1
variant of hydro-2. before a vowel:
hydride.
Related Words
- dropsy
- hydragogue
- hydrangea
- hydrargyrum
- hydrastis
- hydraulus
hydr-I.
variant of hydro-1, before vowels, as in hydrangea.
II.
variant of hydro-2, before vowels, as in hydrazine.
hydr-
combining form
or hydro-
a. water
hydrous
hydroelectric
b. liquid
hydrokinetic
2. hydrogen : containing or combined with hydrogen
hydrocarbon
hydroxyl
3. hydroid
hydromedusa
combining form
or hydro-
ETYMOLOGY Latin hydr-, hydro-, from Greek, from hydōr — more at water
1.a. water
hydrous
hydroelectric
b. liquid
hydrokinetic
2. hydrogen : containing or combined with hydrogen
hydrocarbon
hydroxyl
3. hydroid
hydromedusa
hydr-
combining form
- variant spelling of
HYDRO- shortened before a vowel (as in hydraulic).同HYDRO- （o在元音前省略, 如hydraulic）。
hydr-
combining form. the form of hydro- before vowels, as in hydrant.
hydr-
combining form
or hydro-
Etymology: alteration (influenced by Latin hydr-, hydro-) of Middle English ydr-, ydro-, from Old French ydr- & Middle French ydro-, from Latin hydr-, hydro-, from Greek, from hydōr — more at water
1.
a. : water
< hydrogel >
< hydroelectricity >
b. : hydraulic
< hydropress >
2. : water-loving organism — chiefly in generic names
< Hydracarina >
< Hydrodictyon >
3.
a. : hydrogen : containing hydrogen
< hydriodic acid >
< hydroborate >
b. now usually hydro- : combined with hydrogen — especially in names of organic compounds
< hydroquinidine >
c. : combined with water by hydration
< hydracrylic acid >
or by hydrolysis
< hydrocellulose >
4. : characterized by an accumulation of fluid in a (specified) bodily part
< hydronephrosis >
5.
a. : combined with water — in names of minerals
< hydrohetaerolite >
b. : characterized by addition of water or its constituents — in names of varieties of minerals
< hydromica >
6.[New Latin, from Hydra (genus of polyps)] : hydroid
< hydromedusa >
< hydrorhiza >
or hydro-
1.
a.
< hydrogel >
< hydroelectricity >
b.
< hydropress >
2.
< Hydracarina >
< Hydrodictyon >
3.
a.
< hydriodic acid >
< hydroborate >
b. now usually hydro-
< hydroquinidine >
c.
< hydracrylic acid >
or by hydrolysis
< hydrocellulose >
4.
< hydronephrosis >
5.
a.
< hydrohetaerolite >
b.
< hydromica >
6.
< hydromedusa >
< hydrorhiza >
hydr-
Prefix
- Alternative form of hydro-, used before a vowel.
Derived terms
English words prefixed with hydr-