primary rainbow

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primary rainbow [′prī‚mer·ē ′rān‚bō]

(optics)

The most common of the principal rainbow phenomena, which appears as an arc of angular radius of about 42° about the observer's antisolar point; it is the inner of two rainbows, whose light undergoes only one internal reflection, and which is narrower and brighter than the outer, or secondary, rainbow.

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No references found			There are two main kinds of rainbows: A primary rainbow is the rainbow you see when you have your back to the sun. Make your own rainbow by Kidsworld Magazine			primary lights primary low primary magma primary management domain primary measuring element primary member primary meristem Primary Metal primary mineral primary optic axis primary orogeny primary partition Primary Party Organization primary phase primary phase region primary phloem primary photocurrent primary plasticizer primary pollutant primary porosity primary power cable primary producer Primary Production primary radar primary radiation primary rainbow Primary Rate Interface primary reference fuel primary refrigerant primary register primary relay primary reserve primary rocks primary root primary scattering Primary School primary sedimentary structure primary service area primary sewage sludge Primary Sex Characters primary skip zone primary standard primary storage primary stratification primary stratigraphic trap primary stress primary stress field primary structure primary subcontractor primary submodule primary succession			Primary progressive aphasia Primary progressive aphasia primary progressive multiple sclerosis primary progressive multiple sclerosis primary progressive multiple sclerosis primary progressive multiple sclerosis Primary Propulsion Manager Primary Protection System Primary Proximal Gastric Cancer primary proximal RTA Primary Pserous Carcinoma of the Peritoneum Primary Pulmonary Arterial Hypertension Primary pulmonary hypertension Primary pulmonary hypertension primary pulmonary lobule primary purpura primary purpura primary purpura Primary Qualified Beneficiary Primary qualities Primary qualities of bodies Primary Quality Assurance Organization primary quill Primary quills primary radar Primary Radar Controlled Approach primary radiation primary radiation primary radiation primary radiation primary rainbow Primary Rainforest Primary Rainforest Primary Rat Kupffer Cells Primary Rate Primary Rate Primary Rate Primary rate access Primary rate access Primary Rate Card Primary rate interface Primary rate interface Primary Rate Interface Board Primary Rate ISDN OSI Office Facilities primary reaction Primary Reaction Control System Primary Reactor Coolant Pump Primary Reactor Coolant Pump Trip System primary receiving a primary receiving a primary receiving a primary receiving a primary receiving a Primary Reference Clock Primary Reference Fuel Primary Reference Fuel Primary Reference Receiver Primary Reference Source primary refrigerant primary register Primary reinforcement

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