plural of erect-crested penguin

(transitive, idiomatic) To behave in a manner which favours or which is biased toward. / To choose which mistake (err) will be perpetuated when all available options would result in different mistakes.

(idiomatic) To act in the least risky manner in a situation in which one is uncertain about the consequences.

(sports, chiefly tennis) A basic error committed in a tactical game, where errors are usually forced by the game strategy.

An ink eraser of the chemical kind.

An instrument used to remove ink from a writing surface, either (traditionally) a metal scraper or (more recently) a special pen dispensing a chemical that eradicates ink.

A fine eraser, user to erase individual lines of written text

(statistics) type II error

(statistics) type I error

(statistics) type II error