[puh-rahy-uh-dahyd, -did] /pəˈraɪ əˌdaɪd, -dɪd/
an iodide with the maximum proportion of iodine.
[peer-ee-uh-duh-zey-shuh n] /ˌpɪər i ə dəˈzeɪ ʃən/ noun 1. an act or instance of dividing a subject into historical eras for purposes of analysis and study. /ˌpɪərɪədaɪˈzeɪʃən/ noun 1. the act or process of dividing history into periods noun the division and categorization of history into periods of time for the purposes of discussion and […]
- Period-luminosity relation
[peer-ee-uh d-loo-muh-nos-i-tee] /ˈpɪər i ədˌlu məˈnɒs ɪ ti/ noun, Astronomy. 1. the relationship between the period of light variation and of the absolute magnitude of Cepheid variable stars.
[per-ee-uh-don-tl] /ˌpɛr i əˈdɒn tl/ adjective, Dentistry. 1. of or relating to the periodontium. 2. of or relating to . 3. of or relating to the . /ˌpɛrɪəˈdɒntəl/ adjective 1. of, denoting, or affecting the gums and other tissues surrounding the teeth: periodontal disease adj. 1848, literally “around the tooth,” from peri- + Greek odon […]
noun 1. any of various mixed bacterial infections that affect the soft tissues and bones supporting the teeth.