Punctum, plural puncta, adjective punctate, is an anatomical term for a sharp point or tip. It may also refer to:
Medical Lacrimal punctum, a minute opening on the margins of the eyelids that collect tears produced by the lacrimal glands Blind spot (vision), or punctum cecum, the blind spot in human vision corresponding to the location of the optic disk Erb's point (neurology) or punctum nervosum, a nerve point in the human neck Imperforate lacrimal punctum, a congenital disorder of dogs
Unrelated species named punctum Allium punctum, a species of wild onion Amyna punctum, a moth of the family Noctuidae Cinguloterebra punctum, a sea snail of the family Terebridae Phylloxiphia punctum, a moth of the family Sphingidae Sepsis punctum, a fly of the family Sepsidae Zygaena punctum, a moth of the family Zygaenidae
Other Punctum (gastropod), a genus of land snails Punctum delens, typographic marks used to indicate deletion Neume, the basic element of Western and Eastern systems of musical notation prior to the invention of five-line staff notation An uncategorized celestial object in the galaxy NGC 4945 Equant, punctum aequans, is a mathematical concept developed by Claudius Ptolemy in the 2nd century AD to account for the observed motion of heavenly bodies A concept in the 1980 French philosophy book Camera Lucida A medieval unit of time corresponding to a quarter-hour In photography, a term used by Roland Barthes to refer to an incidental but personally poignant detail in a photograph Punctate, a botanical term meaning marked with an indefinite number of dots, spots, pits or glands