dropping-tube

A scientist carefully uses a dropping-tube to add a clear liquid to a beaker.

Definition

1. Noun:
   • A small tube used for dispensing liquids in drops: A "dropping-tube" is a narrow, cylindrical instrument, typically made of glass or plastic, designed to release liquid in controlled, single-drop increments. It often features a rubber bulb at one end to create suction and control flow.

Usage Examples

• Noun:
  • The chemist used a dropping-tube to add the reagent drop by drop into the solution. (A narrow tube for precise liquid dispensing.)
  • She filled the dropping-tube with medicine and carefully placed a drop into the child's ear. (A small tube for administering liquids in drops.)

Advanced Usage

• "to use a dropping-tube for titration": in chemistry, a dropping-tube is often employed in titration experiments to deliver a reagent gradually until a reaction endpoint is reached.

  • In the lab, we calibrated the dropping-tube to ensure each drop was of uniform volume. (The tube was adjusted for precise measurement.)

• "dropping-tube in medical settings": sometimes referred to as a "dropper," it is used for administering liquid medications, such as eye drops or ear drops.

  • The nurse demonstrated how to hold the dropping-tube vertically to avoid air bubbles. (Proper technique for using the tube.)

Variants and Related Words

• Dropper (n): a common synonym for dropping-tube, especially in everyday language.

  • An eyedropper is a type of dropping-tube used for eye medications. (A specific application of the tube.)

• Drop (n): a small, rounded amount of liquid that falls from a tube or other source.

  • Each drop from the dropping-tube was measured precisely. (The liquid unit dispensed by the tube.)

• Tube (n): a hollow cylindrical container or conduit; the base word for dropping-tube.

  • The dropping-tube is a specialized type of tube. (A general category of object.)

Synonyms

• Dropper: a device for releasing liquid in drops.
• Pipette: a laboratory tool for transferring measured volumes of liquid, often more precise than a simple dropping-tube.
• Medicine dropper: a dropping-tube used for administering liquid medicine.

Related Idioms

• "A drop in the bucket": a very small or insignificant amount (not directly related to dropping-tube, but uses the word "drop").

  • The donation was just a drop in the bucket compared to what was needed. (A tiny contribution.)

• "Drip by drip": gradually, in small increments (evokes the action of a dropping-tube).

  • The water filled the container drip by drip from the leaking tube. (Slowly, one drop at a time.)

Phrasal Verbs

• Drop out: to leave or withdraw from a group, activity, or course (not directly related to dropping-tube, but uses "drop").

  • He decided to drop out of the competition. (Withdraw.)

• Drop by: to visit informally or briefly.

  • Can you drop by the lab later to pick up the dropping-tube? (Visit casually.)