990,645,940 visitors served.

Dictionary/
thesaurus

Medical
dictionary

Legal
dictionary

Financial
dictionary

Acronyms

Idioms

Encyclopedia

Wikipedia
encyclopedia

principal point

Also found in: Dictionary/thesaurus

0.04 sec.

principal point

One of the two points in an optical system where the axis is cut by the two principal planes. Lines drawn from these to corresponding points on the object and the image will be parallel.

?Page tools

Printer friendly

Cite / link

Mentioned in

Medical browser

Full browser

Prince of Wales feather
Prince's plume
princeps
principal
principal artery of thumb
principal meridians
principal optic axis

principal point
principle
principle of infinitesimal dose
principle of similars
principle of specificity of the individual
Pringle's disease
Prinivil
print

Principal Only

principal operational interest

Principal Operations Inspector

principal optic axis

principal order

Principal Orders

Principal Organic Hazardous Constituent

Principal passes of the Alps

Principal Period of Operation

Principal photography

Principal photography of The Lord of the Rings film trilogy

Principal Pixiefrog

principal place of business

Principal Place of Residence

principal plane

principal plane radiographic beam

Principal Planning Agent

principal point

Principal Polarization

Principal Poncherello Pixiefrog

Principal Prickley

Principal Private Secretary

Principal Private Secretary (UK)

Principal Private Secretary to the Prime Minister

Principal Professional and Technology Officer

Principal Protected Fund

Principal Protected Note

Principal protected notes

Principal quantium number

Principal quantum number

Principal Quantum Number (used in formulae in quantum physics)

Principal Race Officer (sailboat racing)

Principal rafter

Principal Ratio Combining

Principal ray

Principal Regional Office for Asia and the Pacific (UNESCO)

Free Tools:	For surfers: Browser extension \| Word of the Day \| Help For webmasters: Free content NEW! \| Linking \| Lookup box \| Double-click lookup \| Partner with us

All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Terms of Use.