Definify.com
Webster 1913 Edition
Blackboard
Black′boardˊ
(blăk′bōrdˊ)
, Noun.
A broad board painted black, or any black surface on which writing, drawing, or the working of mathematical problems can be done with chalk or crayons. It is much used in schools. In late 20th century similar boards of a green slate as well as some colored white became common; wrioting on the slate bioards may be done with chalk, but writing on the white boards is done with colored pens, such as grease pens, which leaves a trace that can be easily erased. The newer boards, usualy called
chalkboards
are nevertheless still sometimes referred to as blackboards
. Definition 2024
blackboard
blackboard
English
Noun
blackboard (plural blackboards)
Physicist Paul Dirac at the blackboard.
- A large flat surface, finished with black slate or a similar material, that can be written upon with chalk and subsequently erased; a chalkboard.
- 2012 March 1, Brian Hayes, “Pixels or Perish”, in American Scientist, volume 100, number 2, page 106:
- Drawings and pictures are more than mere ornaments in scientific discourse. Blackboard sketches, geological maps, diagrams of molecular structure, astronomical photographs, MRI images, the many varieties of statistical charts and graphs: These pictorial devices are indispensable tools for presenting evidence, for explaining a theory, for telling a story.
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Hypernyms
Related terms
- chalkboard
- greenboard
- whiteboard
Translations
a surface that can be written upon with chalk
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Verb
blackboard (third-person singular simple present blackboards, present participle blackboarding, simple past and past participle blackboarded)
- To use a blackboard to assist in an informal discussion.