watchglass
Transparent timepiece shield
A watchglass is a shallow, slightly concave circular dish used in laboratories to hold small samples, evaporate liquids, or cover beakers.
The name comes from its resemblance to the curved glass covering a watch face.
Also called a watch glass.
Laboratory measuring container
- petri dishLidded laboratory culture container
- evaporationLiquid turning to gas
- crucibleVessel for extreme heat
- flaskPortable liquid container
pipette · reagent · titration · burette · filtration · distillation · condenser · precipitate
Curved outward externally
- domeRounded vault forming roof
- curvedSmoothly bent, not angular
- sphericalGlobe-like in form
- bowlConcave food container
rounded · dish · concave · arc · contour · bulge · parabolic · meniscus
beaker
Laboratory measuring container
- petri dishLidded laboratory culture container
- evaporationLiquid turning to gas
- crucibleVessel for extreme heat
flask · pipette · reagent · titration · burette · filtration · distillation · condenser · precipitate · desiccator
convex
Curved outward externally
bowl · rounded · dish · concave · arc · contour · bulge · parabolic · meniscus · shallow
crystal
Ordered-atom solid
timepiece · bezel · crown · movement · jeweler · repair · replacement · scratch-resistant · sapphire · acrylic
porthole
Circular vessel window
- barometerInstrument gauging atmospheric pressure
- compassDevice showing cardinal directions
- shipSeagoing transport vessel
deck · bridge · instrument · navigation · marine · captain · seafaring · vessel · cabin · wheelhouse