3. The main body of anything; as, the trunk of a vein or of an artery, as distinct from the branches.
4. (Arch)
Defn: That part of a pilaster which is between the base and the capital, corresponding to the shaft of a column.
5. (Zoöl.)
Defn: That segment of the body of an insect which is between the head and abdomen, and bears the wings and legs; the thorax; the truncus.
6. (Zoöl.) (a) The proboscis of an elephant. (b) The proboscis of an insect.
7. A long tube through which pellets of clay, p He shot sugarplums them out of a trunk. Howell.
8. A box or chest usually covered with leather, metal, or cloth, or sometimes made of leather, hide, or metal, for containing clothes or other goods; especially, one used to convey the effects of a traveler. Locked up in chests and trunks. Shak.
9. (Mining)
Defn: A flume or sluice in which ores are separated from the slimes in which they are contained.