Defn: Drought. [Obs.] Tyndale.
DUAD
Du"ad, n. Etym: [See Dyad.]
Defn: A union of two; duality. [R.] Harris.
DUAL
Du"al, a. Etym: [L. dualis, fr. duo two. See Two.]
Defn: Expressing, or consisting of, the number two; belonging to two; as, the dual number of nouns, etc. , in Greek. Here you have one half of our dual truth. Tyndall.
DUALIN
Du"a*lin, n. (Chem.)
Defn: An explosive substance consisting essentially of sawdust or wood pulp, saturated with nitroglycerin and other similar nitro compounds. It is inferior to dynamite, and is more liable to explosion.
DUALISM
Du"al*ism, n. Etym: [Cf. F. dualisme.]
Defn: State of being dual or twofold; a twofold division; any system which is founded on a double principle, or a twofold distinction; as: (a) (Philos.) A view of man as constituted of two original and independent elements, as matter and spirit. (Theol.) (b) A system which accepts two gods, or two original principles, one good and the other evil. (c) The doctrine that all mankind are divided by the arbitrary decree of God, and in his eternal foreknowledge, into two classes, the elect and the reprobate. (d) (Physiol.) The theory that each cerebral hemisphere acts independently of the other. An inevitable dualism bisects nature, so that each thing is a half, and suggests another thing to make it whole. Emerson.
DUALIST
Du"al*ist, n. Etym: [Cf. F. dualiste.]