capillary tube
Thin glass cylinder
A capillary tube is a tube with a very narrow bore, thin enough that liquid rises or falls within it through surface tension rather than gravity alone.
This property makes capillary tubes essential in thermometers, where mercury or alcohol climbs the narrow channel, and in laboratory work for transferring small liquid volumes.
The technician drew blood into a capillary tube.
- glassTransparent solid from sand
- thinSmall in diameter
- narrowOf small width
- boreTiresome individual or drill
- meniscusCurved liquid surface
viscosity · liquid · rise · surface tension · pipette · thermometer · mercury · blood · blood draw · sample · draw · siphon · wick · straw · hairlike · vessel · laboratory · lab equipment
- tubesCRT, straw, drinking straw, hose, garden hose
- tubes & pipescopper pipe, steel pipe, iron pipe, PVC pipe, galvanized pipe
- thermometer partsmercury, alcohol, glass, digital sensors, thermocouples
- blood equipmentblood glucose meter, glucometer, blood bag, blood bags, blood vial
- phlebotomyblood draw, blood sample, phlebotomist, vacutainer, tourniquet
- viscometryviscometer, kinematic viscosity, poise, stokes, stoke
capillary tubetrunk line
Primary transport or communication route
water main · sewer pipe · culvert · drainage pipe · conduit
capillary, tube, cape, capital, captain, capitulate, chapter, cattle, chattel