C73 or C-73 may refer to :
*
Boeing C-73, a 1933 military aircraft
*
C-73 (Michigan county highway)
*
Ruy Lopez
The Ruy Lopez (; ), also called the Spanish Opening or Spanish Game, is a chess opening characterised by the moves:
:1. e4 e5
:2. Nf3 Nc6
:3. Bb5
The Ruy Lopez remains one of the most popular chess openings, featuring many variations. In ...
chess openings ECO code
*
Thyroid cancer
Thyroid cancer is cancer that develops from the tissues of the thyroid gland. It is a disease in which cells grow abnormally and have the potential to spread to other parts of the body. Symptoms can include swelling or a lump in the neck, ...
ICD-10 code
* Caldwell 73 (
NGC 1851), a globular cluster in the constellation Columba
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