Lava Tube

Science / Geology / Lava Tube: A tunnel below the surface of a solidified lava flow, formed when the exterior portions of the flow solidify and the molten internal material is drained away.
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Tentacle-Tube-Foot Suspension Feeder

Science / Marine Biology / Tentacle-Tube-Foot Suspension Feeder: Suspension feeder that traps particles on distinct tentacles or tube feet (in echinoderms) MORE

Tube (Enclosure)

Technology / Home Audio / Tube (Enclosure): A type of woofer enclosure consisting of a long tube with a woofer at one end, and a port or Passive Radiator at the other. A good low-end reproducer, this design is very compact and generally used in MORE

Tube Cooled

Technology / Motors / Tube Cooled: A motor in which heat is dissipated by air-to-air heat exchange. MORE


Business / Construction / Sonotube: Round, large cardboard tubes designed to hold wet concrete in place until it hardens. MORE

Sieve Tube Members

Science / Biology / Sieve Tube Members: Phloem cells that form long sieve tubes. See sieve elements. MORE

Pollen Tube

Science / Biology / Pollen Tube: Structure produced by the tube nucleus in the pollen grain through which the sperm nucleus (or nuclei in angiosperms) proceed to travel through to reach the egg. MORE