[{"word":"pentads","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A group or series of five things.","synonyms":[],"antonyms":[]},{"definition":"A mean average value of temperature, etc., taken every five days.","synonyms":[],"antonyms":[]},{"definition":"Any element, atom, or radical having a valence of five, or which can be combined with, substituted for, or compared with, five atoms of hydrogen or other monad.","synonyms":[],"antonyms":[],"example":"Nitrogen is a pentad in the ammonium compounds."}],"synonyms":["fivesome"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/pentad","https://en.wiktionary.org/wiki/pentads"]}]