4. (Biol.)
Defn: Successive division and subdivision, as of a stem of a plant or a vein of the body, into two parts as it proceeds from its origin; successive bifurcation.
5. The place where a stem or vein is forked.
6. (Logic)
Defn: Division into two; especially, the division of a class into two subclasses opposed to each other by contradiction, as the division of the term man into white and not white.
DICHROIC
Di*chro"ic, a. Etym: [See Dichroism.]
Defn: Having the property of dichroism; as, a dichroic crystal.
DICHROISCOPE
Di*chro"i*scope, n.
Defn: Same as Dichroscope.
DICHROISM
Di"chro*ism, n. Etym: [Gr. (Opt.)