(fluid dynamics) A theorem which states that to achieve propulsion at low Reynolds number in simple (i.e. Newtonian) fluids, a swimmer must deform in a way that is not invariant under time-reversal.

plural of fruit of the poisonous tree

(US, law, idiomatic) Evidence that has been obtained as the result of an illegal act on the part of law enforcement personnel (such as a warrantless search, or continued questioning of a witness who has invoked the right of counsel), and which is therefore excluded from being admitted as evidence in a trial.

(idiomatic) Adhering strictly to rules, legal requirements, or official procedures.

insane, having lost control.

(logic) A formal fallacy, committed by reasoning in the form: / If P, then Q. / Q. / Therefore, P.

(idiomatic) In a secluded location; in or to a place which is not frequently visited or not widely known.

(idiomatic) An event or set of events which has already happened and cannot be changed.

To travel to a higher elevation, especially to a rural region on vacation. / (idiomatic) To go to a safe place; to seek refuge; to flee.

A kind of tropical bird, of the genus Rupicola.