- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
drafting
-
by
-
endearments
-
venture
-
tool
-
condolent
-
glide
-
john langdon down
-
pole
-
prejudicious
- Hide translation
index of refraction
index of refraction /ˈɪndɛks əv rɪˈfrækʃən/
noun
-
The ratio of the velocity of light in a vacuum to that in a medium
(
index of refraction
, refractive index
)
the ratio of the velocity of light in a vacuum to that in a medium
cogwheel
cogwheel /ˈkɒɡwiːl/
noun
-
A toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
(
cogwheel
, gear wheel
, geared wheel
, gear
)
a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
agribusiness
agribusiness /ˈæɡrɪˌbɪznəs/
noun
-
A large-scale farming enterprise
(
agribusiness
, factory farm
, agriculture
)
a large-scale farming enterprise
The village's economy heavily relied on agriculture and farming.
The village's economy heavily relied on agriculture and farming.
genus Nestor
genus Nestor /ˈdʒiːnəs ˈnɛstɔːr/
noun
-
A genus of Psittacidae
(
genus Nestor
, Nestor
)
a genus of Psittacidae
