固

Mathematics

eigenvalue

Food, cooking

bouillon cube; stock cube

Medicine

rigidity (e.g. muscular); rigor

hard-boiled egg

fixed price

arteria hepatica propria; hepatic artery proper; proper hepatic artery

solid fat

stiff consistency; thick paste

Abbreviation; Economics

fixed exchange rate system

Economics

fixed exchange rates; pegged rate of exchange; fixed rate

Colloquial

online handle (esp. on an online forum like 2ch where the majority of users post anonymously); screen name; user name

Colloquial

user who uses an online handle (instead of posting anonymously)

eating only one's favourite food; having an unvarying diet; eating poorly

to put on a moderate amount of lean or firm weight; to gain healthy weight (e.g. from muscle); to become overweight as opposed to obese

fixed lateral; fixed side; fixed part

Abbreviation

landline telephone; fixed-line telephone

Computing

eigenfunction

fixed-price purchase system (electricity); feed-in tariff system

bar soap; solid soap

Electricity, elec. eng.

stator

fixed length block

fixed liabilities

Chemistry

solid solution

solid state physics

stiff-consistency concrete