capillary_tube
1. [ noun ] (medicine) a tube of small internal diameter; holds liquid by capillary action
Synonyms: capillary capillary_tubing
Related terms: tube thermometer
Similar spelling:   capillary_bed
  capillary_tubing
  capillary_vein
  capillary_vessel
  capillary_artery
  capillarity
  capillary_action