optics

noun 0.766

optical power

noun 0.736

optical fibre

noun 0.730

optic

noun 0.723

optical spectrum

noun 0.721

optical astronomy

noun 0.719

optical glass

noun 0.716

optical microscope

noun 0.709

optical drive

noun 0.680

optical delusion

noun 0.673

optoelectronics

noun 0.667

optical illusion

noun 0.667

dioptric

noun 0.664

optical activity

noun 0.659

optical isomer

noun 0.653

fibre optics

noun 0.640

optician

noun 0.634

optometry

noun 0.622

occipital

noun 0.615

optical flat

noun 0.614

optical character recognition

noun 0.601

optical rotatory dispersion

noun 0.595

optic nerve

noun 0.592

olfactory

noun 0.587

photonics

noun 0.587

ocular

noun 0.580

optimal

noun 0.571

orbital

noun 0.568

adaptive optics

noun 0.562

optometrist

noun 0.561

eyewear

noun 0.561

ophthalmoscope

noun 0.560

dioptrics

noun 0.558

opsin

noun 0.552

otoscope

noun 0.552

eyeglass

noun 0.551

organoleptic

noun 0.549

electrical

noun 0.544

ortho

noun 0.543

orthogonal

noun 0.543

oculist

noun 0.542

lens

noun 0.541

visual

noun 0.540

lightpath

noun 0.538

oculus

noun 0.537

op art

noun 0.533

telescope

noun 0.529

ophthalmology

noun 0.529

monocular

noun 0.528

biophotonics

noun 0.528

observable

noun 0.527

opal

noun 0.526

optocoupler

noun 0.526

oxy

noun 0.525

observation car

noun 0.525

acoustic

noun 0.524

option

noun 0.524

optimum

noun 0.523

visible light

noun 0.521

oblique

noun 0.520

eye

noun 0.520

oculography

noun 0.519

sensory

noun 0.519

transorbital

noun 0.517

ops

noun 0.516

postocular

noun 0.516

orchestral

noun 0.516

operative

noun 0.514

oper

noun 0.513

olf

noun 0.513

photochemical

noun 0.513

ophthalmoscopy

noun 0.511

olfaction

noun 0.511

silicon photonics

noun 0.510

eyes right

noun 0.510

diopter

noun 0.508

laser

noun 0.508

organic light-emitting diode

noun 0.508

photosensor

noun 0.507

observatory

noun 0.507

observing

noun 0.507

otoscopy

noun 0.506

observation

noun 0.506

eye doctor

noun 0.505

otology

noun 0.505

holograph

noun 0.504

nanophotonics

noun 0.504

fluorescent

noun 0.504

eyesight

noun 0.504

ogle

noun 0.503

retinal

noun 0.503

opioid

noun 0.503

orb

noun 0.501

compound eye

noun 0.501

opaline

noun 0.501

line of sight

noun 0.500