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  1. Photic sneeze reflex - Wikipedia

    The photic sneeze reflex (also known as ACHOO syndrome, a contrived acronym for Autosomal-dominant Compelling Helio-Ophthalmic Outburst[1]) is an inherited and congenital autosomal …

  2. ACHOO Definition & Meaning - Merriam-Webster

    The meaning of ACHOO is —used to represent the sound of a sneeze.

  3. Photic Sneeze Reflex, ACHOO Syndrome and Sun Sneezes

    Jul 10, 2023 · For other people with the reflex, sun sneezes only happen occasionally. As a result, it’s quite possible to inherit the ACHOO syndrome and never realize you have it.

  4. "Achoo" And "Bless You": Where Do They Come From ...

    Mar 28, 2023 · When someone sneezes, we often use the word achoo to describe the sound. Every time we hear an achoo, we are often compelled to answer with a Bless you or God …

  5. ACHOO Syndrome - Medical Genetics Summaries - NCBI Bookshelf

    Oct 15, 2012 · Autosomal Dominant Compelling Helioopthalmic Outburst (ACHOO) Syndrome is characterized by uncontrollable sneezing in response to the sudden exposure to bright light, …

  6. What Is ACHOO Syndrome? A Photic Sneeze Reflex Explained

    Jul 21, 2025 · An uncontrollable sneeze when stepping into bright sunlight is a response known as the photic sneeze reflex, or ACHOO syndrome. It is an inherited genetic trait that causes …

  7. achoo exclamation - Definition, pictures, pronunciation and ...

    Definition of achoo exclamation in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.