Noun | 1. | Planck's constant - the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10\-34 joule-secondSynonyms: h |

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plan of action

plan of attack

planar

Planaria

Planarian

Planarida

Planarioid

Planary

planate

planation

Planch

Plancher

Planchet

Planchette

Planching

Planck

**-- Planck's constant --**

Planck's law

Planck's radiation law

Plane

plane angle

Plane at infinity

Plane chart

Plane curve

plane figure

plane geometry

Plane iron

Plane locus

Plane of flotation

Plane of polarization

Plane of projection

Plane of refraction

Plane problem

plan of attack

planar

Planaria

Planarian

Planarida

Planarioid

Planary

planate

planation

Planch

Plancher

Planchet

Planchette

Planching

Planck

Planck's law

Planck's radiation law

Plane

plane angle

Plane at infinity

Plane chart

Plane curve

plane figure

plane geometry

Plane iron

Plane locus

Plane of flotation

Plane of polarization

Plane of projection

Plane of refraction

Plane problem