Miosis (Noun)
Meaning 1
Reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller.
Classification
Nouns denoting acts or actions.
Examples
- The doctor observed miosis in the patient's left eye after administering the medication.
- Prolonged exposure to bright sunlight can cause miosis, reducing the amount of light that enters the eye.
- The nurse noted that the patient's pupils exhibited miosis in response to the morphine injection.
- The optometrist performed a test to assess the degree of miosis in the patient's eyes after adjusting the lighting in the room.
- Miosis was induced in the test subjects' eyes using a specialized device that produced a high-intensity light stimulus.
Synonyms
Hypernyms
- Instinctive Reflex
- Physiological Reaction
- Reflex
- Innate Reflex
- Inborn Reflex
- Unconditioned Reflex
- Reflex Response
Related Words
Meaning 2
(genetics) cell division that produces reproductive cells in sexually reproducing organisms; the nucleus divides into four nuclei each containing half the chromosome number (leading to gametes in animals and spores in plants).
Classification
Nouns denoting natural processes.
Examples
- Miosis is a specialized type of cell division that occurs in reproductive cells, resulting in the production of gametes with half the number of chromosomes as the parent cell.
- During miosis, the nucleus undergoes two successive divisions, meiosis I and meiosis II, to produce four haploid daughter cells.
- In plants, miosis produces spores that will eventually develop into gametophytes, which produce gametes through mitosis.
- Miosis is essential for maintaining genetic diversity in sexually reproducing organisms by shuffling the genetic material and creating unique combinations of chromosomes.
- The process of miosis is tightly regulated to ensure that each gamete receives the correct number of chromosomes, which is crucial for proper development and function of the resulting offspring.