# Type III

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**Type III** or *Type 3* may refer to:

## Japanese weapons

- [Type 3 Chi-Nu](/source/Type_3_Chi-Nu), a Japanese medium tank
- [Type 3 mine](/source/Type_3_mine), a Japanese land mine
- [8 cm/40 3rd Year Type naval gun](/source/8_cm/40_3rd_Year_Type_naval_gun), a Japanese weapon
- [Type 3 12 cm AA Gun](/source/Type_3_12_cm_AA_Gun), a Japanese weapon
- [Type 3 Chū-SAM](/source/Type_3_Ch%C5%AB-SAM), a Japanese medium-range surface-to-air missile
- [Type 3 heavy machine gun](/source/Type_3_heavy_machine_gun), a Japanese heavy machine gun of World War I
- [Type 3 aircraft machine gun](/source/Type_3_aircraft_machine_gun), a Japanese aircraft machine gun of World War II

## Biology and medicine

- [Hyperlipoproteinemia type III](/source/Hyperlipoproteinemia_type_III#Hyperlipoproteinemia_type_III), a risk factor for cardiovascular disease
- [Nitric oxide synthase 3](/source/Nitric_oxide_synthase), an enzyme
- [Type III intermediate filaments](/source/Intermediate_filament#Type_III), structural proteins
- [Type III secretion system](/source/Type_III_secretion_system) used by pathogenic bacteria

## Mathematics

- [Type III von Neumann algebra](/source/Von_Neumann_algebra)
- [Type III sums of squares](/source/Explained_sum_of_squares#Type_III_SS), a measurement of the explanatory power of a variable after accounting for all other variables in the model in statistics
- [Type III error](/source/Type_III_error), any of several proposed extensions to the concept of Type I and type II errors in statistics

## Other

- [Type-III Civilization](/source/Kardashev_scale) on the Kardashev scale, a way to classify civilizations
- [British Railways Type 3 Diesel locomotives](/source/British_Railways_Type_3_Diesel_locomotives)
- The [Volkswagen Type 3](/source/Volkswagen_Type_3)
- [Peugeot Type 3](/source/Peugeot_Type_3)
- The [IBM Type-III Library](/source/IBM_Type_III_Library), a distribution mechanism for unsupported IBM mainframe software such as CP/CMS
- [PostScript fonts Type 3](/source/PostScript_fonts#Type_3), a format of Postscript fonts
- [Motorola Type IIi Hybrid](/source/Motorola_Type_IIi_Hybrid), a trunked radio system
- [IEC 62196 Type 3](/source/IEC_62196#Type_3) connector type (alias Plug Alliance)
- [R-Type III: The Third Lightning](/source/R-Type_III), a video game
- [IEC Type III](/source/Compact_Cassette_tape_types_and_formulations#typeiii), one of the four "type" classifications of audio cassette formulation
- Type-3 language in the Chomsky hierarchy of formal languages, a.k.a. [regular language](/source/Regular_language)
- The [Type III denim jacket](/source/Jean_jacket#History)

## See also

- [Class 3 (disambiguation)](/source/Class_3_(disambiguation))

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Adapted from the Wikipedia article [Type III](https://en.wikipedia.org/wiki/Type_III) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Type_III?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.