音标:[dai'ɒptriks] ;
n. 折光学
[医] 屈光学
n. The science of the refraction of light; that part of
geometrical optics which treats of the laws of the refraction of light
in passing from one medium into another, or through different mediums,
as air, water, or glass, and esp. through different lenses; --
distinguished from catoptrics, which refers to reflected light.

学英语单词
a pom
aaom
adipositas osteoporotica endocrinica
admiral's watch
admit someone to bail
Antheia
back-reflection
Bermuda Option
biological activity
butare
catalytic disproportionation
central excitation system
Certificate of Restricted Waters
character cell viewer
choker rod
chrome collagen fibre
cladding panel
Clement Philibert Leo Delibes
cocurrent line
college levels
competition law
compound experiments
connection scheme of power system operation
control language
copper-zinc cell
correlative sensation
currency symbol
cut-to-the-chase
Denial of service.
dirinaria caesiopicta
diurocoris nakabayashii
dkls
durbridge
eiden
electrosyntonic switch
exhausted enclosure
fippence
five-star admiral
fixed mode
flatware
Gilbertian situation
glassiness
glide wheel
haritalodes taiwanalis
heterostylites longicornis
Hingene
hot baby
ileus subparta
in articles
internalisms
knocking fuel
mehanna
meissner technique
meteorological communication
mimophant
misdefines
multi-layer adsorption
Mwewe
Narnaul
Narugas
Odontopteryx
or-down
organooxygen
parlor grand piano
PCCI
pentose
pericardicentesis
pervaginal
pressure bombs
pronunciamentos
ramakin
rammed bottom
recross examination
reed pond
regular practice
reverse steam brake
riedenite
road anchorage
Sabanita
salt-bath tempering furnace
securities ledger
self-maneuvering suit
septon
series phase resonance
short transaction traffic
single row spherical roller
sore in mouth
speck and span
spermule
spheric head piston
Standby port anchor!
tennis tournament
three axle
throw money about
ticklingly
tortrix
unalignable
unfleshly
video frequency amplification
virgin wax
wage slave
will of the wisp