noun. Like hyp. an abbreviation of hypochondria: commonly in the plural.

noun. In photography, a common abbreviation of hyposulphite of soda, a chemical extensively used in most photographic processes.

noun. A prefix of Greek origin, cognate with sub- of Latin origin, and meaning primarily ‘under,’ either in place or in degree (less,' ‘less than’).

noun. In the manufacture of india-rubber goods, a trade-name for lead thiosulphate, used as a vulcanizing material. Also known as black hypo.

noun. Hypochondria.

noun. Sodium hyposulphite, or thiosulphate, a solution of which is used as a bath to wash out the unchanged silver salts in a picture.

noun. Melancholy; a fit of ‘hypochondria’; a morbid depression (obsolete by 1881 according to Eric Partridge.

noun. a piston syringe that is fitted with a hypodermic needle for giving injections

noun. a compound used as a fixing agent in photographic developing

"Lincoln certainly had moments of what he called the "hypo," most notably when his first serious crush, Ann Rutledge, died in 1835, and again when he broke up with fiancée Mary Todd on the eve of their nuptials in 1841."

hypo-  

fixer  fixing agent  

typo  

crime-scene  fine-pointed  first-aid  hagion  hypodermic  

hypochondria