First recorded in 1960–65.
Comes from petro-, a combining form meaning \"rock,\" and ichor, which in classical mythology means “ethereal fluid flowing in the veins of the gods.”
Sign up for more Word of the Day!

\r\nEXAMPLES OF PETRICHOR\r\n

The desert landscape was quickly transformed as petrichor filled the air after a long-awaited rainstorm.
As the storm passed, leaving behind puddles and damp earth, the sweet petrichor lingered like a fond memory.

\r\nIt's National Poetry Month, and we’ve created a challenge that really is for everyone. Submit now!","audio":"https://static.sfdict.com/audio/NEW2016/petrichor_000.mp3","definitions":[{"partofspeech":"noun","data":"a distinctive scent, usually described as earthy, pleasant, or sweet, produced by rainfall on very dry ground."}],"examples":[],"imageUrl":"https://www.dictionary.com/e/wp-content/uploads/2024/03/petrichor_IG.png","accentColor":"#0063D7"}},"status":"succeeded"}},"meta":{"requestId":"9SVO29aW-oOasjTnE1cvW","requestStatus":"fulfilled"}},{"type":"fetchWordsNearby/fulfilled","payload":{"data":{"before":[{"slug":"anoa","entry":"anoa"},{"slug":"anobiid","entry":"anobiid"},{"slug":"anocracy","entry":"anocracy"},{"slug":"anode","entry":"anode"},{"slug":"anode-dark-space","entry":"anode dark space"}],"after":[{"slug":"anode-resistance","entry":"anode resistance"},{"slug":"anodic","entry":"anodic"},{"slug":"anodize","entry":"anodize"},{"slug":"anodontia","entry":"anodontia"},{"slug":"anodyne","entry":"anodyne"}]}},"meta":{"arg":{"word":"anode-glow"},"requestId":"LPHbYy9x_SH89wCyv6GlQ","requestStatus":"fulfilled"}},{"type":"luna/fetchExampleSentences/fulfilled","payload":{"data":{"tdb":[],"gbg":[]}},"meta":{"arg":{"word":"anode-glow"},"requestId":"ifAxXML9k1sOt3XyGx-ZV","requestStatus":"fulfilled"}},{"type":"fetchDictionaryResults/fulfilled","payload":{"slugs":[{"entries":[{"__typename":"Entry","audioPronunciations":[],"confusableNotes":[],"genderNotes":[],"grammarNotes":[],"headword":{"displayForm":"anode glow","slug":"anode-glow"},"idioms":[],"orderKey":99999010,"ordinal":10,"origin":null,"partOfSpeechBlock":[{"definitions":[{"antonymsConnection":{"edges":[]},"definitionSetChunks":"[{\"type\": \"def\", \"children\": [{\"text\": \"the luminous region between the positive column and the anode dark space in a vacuum tube, occurring when the pressure is low.\", \"type\": \"text\"}]}]","examples":[],"ordinal":1,"subdefinitions":[],"synonymsConnection":{"edges":[]}}],"inflectionSets":[],"labelSet":{"labelSetText":"Physics."},"ordinal":1,"partOfSpeech":"noun"}],"pronunciationNotes":[],"pronunciationSet":null,"relatedFormSets":[],"sensitiveNotes":[],"spellingNotes":[],"synonymStudy":[],"usageAlerts":[],"usageNotes":[],"variants":[],"verbPhrases":[]}],"url":"anode-glow"}]},"meta":{"arg":{"slug":"anode-glow"},"requestId":"Z1qY5__uLpqfL6tIYq43H","requestStatus":"fulfilled"}},{"type":"fetchResultsData/fulfilled","payload":{"data":{"url":"anode-glow","displayForm":"anode glow","canonicalSlug":"anode-glow","content":[{"source":"luna","entries":[{"id":"u3bb48a285cbafaf0.-3bc55cee.14d9e5b8d44.4255","type":"normal","entry":"anode glow","entrySyllabified":"anode glow","entryVariants":[],"homograph":null,"pronunciation":null,"predefinitionContent":"","posBlocks":[{"definitions":[{"order":1,"type":"simple","predefinitionContent":"","postdefinitionContent":"","definition":"the luminous region between the positive column and the anode dark space in a vacuum tube, occurring when the pressure is low.","synonyms":"","antonyms":"","cites":[]}],"pos":"noun","posSupplementaryInfo":"Physics."}],"origin":null,"originData":null,"supplementaryNotes":[],"variantForms":[],"variantSpellings":[],"referenceData":[],"relatedForms":[],"confusables":[]}]}],"nearbyWordOrdinal":6726,"index-rank-01":["anode glow"],"index-rank-02":[],"index-rank-03":[],"index-rank-04":["anode glow's","anode glows","anode glows'"],"index-rank-05":[],"index-rank-06":[],"index-rank-07":[],"index-rank-08":[],"index-rank-09":[],"index-rank-10":[],"index-rank-11":[],"index-rank-12":[],"index-rank-13":[],"index-rank-14":[],"index-rank-15":[],"categoryId":"312","complexityScore":0.3937584877155428,"gradeLevel":"middle_school","tunaSlug":null,"isFeaturedMetaSlug":false}},"meta":{"arg":{"word":"anode-glow"},"requestId":"kqAkBYhjHQW4tBE7tqcqI","requestStatus":"fulfilled"}},{"type":"fetchSpellSuggestions/fulfilled","payload":{"data":{"luna":[],"tuna":["ander","abode","and","node","ante","oned","aone","endow","Andes","aide","undo","anodize","anodyne","anted","anter","ender","endue","indue","nod","ode","under","undue","anadem","anodic","encode","ant","end","inned","note","nude","un due","un-due","atone","A-one","a one","in order","an","at one"],"lunaWithSlug":[],"tunaWithSlug":[{"displayForm":"ander","slug":"ander"},{"displayForm":"abode","slug":"abode"},{"displayForm":"and","slug":"and"},{"displayForm":"node","slug":"node"},{"displayForm":"ante","slug":"ante"},{"displayForm":"oned","slug":"oned"},{"displayForm":"aone","slug":"aone"},{"displayForm":"endow","slug":"endow"},{"displayForm":"Andes","slug":"andes"},{"displayForm":"aide","slug":"aide"},{"displayForm":"undo","slug":"undo"},{"displayForm":"anodize","slug":"anodize"},{"displayForm":"anodyne","slug":"anodyne"},{"displayForm":"anted","slug":"anted"},{"displayForm":"anter","slug":"anter"},{"displayForm":"ender","slug":"ender"},{"displayForm":"endue","slug":"endue"},{"displayForm":"indue","slug":"indue"},{"displayForm":"nod","slug":"nod"},{"displayForm":"ode","slug":"ode"},{"displayForm":"under","slug":"under"},{"displayForm":"undue","slug":"undue"},{"displayForm":"anadem","slug":"anadem"},{"displayForm":"anodic","slug":"anodic"},{"displayForm":"encode","slug":"encode"},{"displayForm":"ant","slug":"ant"},{"displayForm":"end","slug":"end"},{"displayForm":"inned","slug":"inned"},{"displayForm":"note","slug":"note"},{"displayForm":"nude","slug":"nude"},{"displayForm":"un due","slug":"un%20due"},{"displayForm":"un-due","slug":"un-due"},{"displayForm":"atone","slug":"atone"},{"displayForm":"A-one","slug":"a-one"},{"displayForm":"a one","slug":"a%20one"},{"displayForm":"in order","slug":"in%20order"},{"displayForm":"an","slug":"an"},{"displayForm":"at one","slug":"at%20one"}]}},"meta":{"arg":{"word":"anode-glow"},"requestId":"B1iYOl0McLPtwmBu5iTcG","requestStatus":"fulfilled"}}]},"actionData":null,"errors":null}

anode glow

noun

Word of the Day