TONTINE INSURANCE n.
among the holders of policies in force at the termination of the tontine period, but the reverse for the paid-up value is paid on lapsed policies, and on the policies of those that have died the face is paid. Other modified forms are called free tontine, deferred dividend, etc., according to the nature of the tontine…
TWINNING n.
The assemblage of two or more crystals, or parts of crystals, in reversed position with reference to each other in accordance with some definite law; also, rarely, in artificial twinning (accomplished for example by pressure), the process by which this reversal is brought about. Polysynthetic twinning, repeated twinnin…
UNION n.
, intention, under Intention. -- Union down (Naut.), a signal of distress at sea made by reversing the flag, or turning its union downward. -- Union jack. (Naut.) See Jack, n., 10. -- Union joint. (Mech.) (a) A joint formed by means of a union. (b) A piece of pipe made in the form of the letter T.