English Reference
noun

explorer

n.
US /ɪksˈpɫɔɹɝ/ UK /ɛksplˈɔːɹɐ/ ex·plor·er UK spelling explorers

  1. 01 B1 Intermediate

    someone who travels to places that are not well known to find out more about them.

    an individual who travels to unmapped or unfamiliar regions for the purpose of discovery and information gathering.

    Simple

    The famous explorer spent years traveling across the thick jungles of South America.

    In context

    Early polar explorers faced extreme temperatures and isolation in their quest to reach the geographic North Pole.

  2. 02 B2 Upper Intermediate Computing

    a computer program or window that lets you see and organize the files on your computer.

    a graphical user interface designed to allow the user to navigate and manage a hierarchical file system.

    Simple

    Open the file explorer to find the document you saved this morning.

    In context

    The operating system's default explorer allows users to drag and drop files between different network drives seamlessly.

    Usage

    Often capitalized when referring to specific software like Windows Explorer.

    file managerbrowser
  3. 03 C2 Proficiency Technical Medicine

    a sharp metal tool that a dentist uses to check your teeth.

    a sharp, pointed hand instrument used in dentistry to examine tooth surfaces for decay or irregularities.

    Simple

    The dentist used a small explorer to check for cavities during the exam.

    In context

    The hygienist carefully ran the explorer along the gum line to detect any buildup of tartar or signs of enamel erosion.

    Teacher's tip

    This is a highly specialized term; most patients will simply call it a 'tool' or 'hook'.

    probesickle probe
This entry
Level B1 · Intermediate
Frequency Frequent
Updated