A white, albuminous, fibrous substance, formed in the coagulation of the blood.

To apply fibrin sealant to a surgical site to either stop bleeding or for surgical flap closure.

An estate held by a person on condition of providing military service to a superior. / Something over which one has rights or exercises control.

(informal) A lie, especially one that is more or less inconsequential. / (informal, rare) A liar.

(informal, intransitive) To lie, especially more or less inconsequentially.

(medicine, informal) The fibula.

(archaic, thieves' cant, boxing) To punch, especially a series of punches in rapid succession; to beat; to hit; to strike.

(neologism) A kind of experimental poem where the number of syllables in each line is the next succeeding Fibonacci number.

(law) Relating to an entity that owes to another good faith, accountability and trust, often in the context of trusts and trustees.

(law) One who holds a thing in trust for another. / (theology) One who depends for salvation on faith, without works; an antinomian.