water tube
noun
1A pipe that contains or conveys water, especially any of those carrying water through a water-tube boiler.
2 Zoology (in invertebrates) a tubular structure that conveys water, such as a water vessel in an echinoderm or a vertical channel in the gill filament of a bivalve mollusc.
Origin
Early 18th century; earliest use found in John Desaguliers (1683–1744), natural philosopher and engineer.
- bird's-eye view
- bird's-foot
- bird's-foot trefoil
- birdshot
- bird's-nest
- bird's-nest fungus
- bird's-nesting
- bird's-nest orchid
- bird's nest soup
- birds of a feather flock together
- birdsong
- bird spider
- bird strike
- bird table
- birdwatcher
- birdwatching
- birdwing
- bird-winged butterfly
- birefringence
- birefringent
- bireme
- biretta
- Birgitta
- Birgitta, St
- biri