I-beam

noun — 2 senses

I-beam

noun

Etymology Since it resembles a capital letter I with serifs.

1

Engineering, Natural sciences, Physical sciences A beam with cross-section shaped like a capital letter I (with serifs top and bottom), used in construction.

2

Computing, Engineering, Graphical user interface, Mathematics, Natural sciences, Physical sciences, Sciences A cursor shaped like the letter I, usually indicating text that can be edited or selected.

  • In general, the cursor image is the primary concern, with different types used to indicate selected functions such as I-beams or vertical bars for text editing, a pencil for drawing, or a hand with the index finger extended […]1992, Ben Ezzell, Borland C++ 3.0 programming:
Related terms
I-girder

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.