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":"CnHPREyXf0dTx91KD-f5b","requestStatus":"fulfilled"}},{"type":"fetchWordsNearby/fulfilled","payload":{"data":{"before":[{"slug":"lipofilling","entry":"lipofilling"},{"slug":"lipofuscin","entry":"lipofuscin"},{"slug":"lipogenesis","entry":"lipogenesis"},{"slug":"lipogram","entry":"lipogram"},{"slug":"lipography","entry":"lipography"}],"after":[{"slug":"lipoid","entry":"lipoid"},{"slug":"lipolysis","entry":"lipolysis"},{"slug":"lipoma","entry":"lipoma"},{"slug":"lipopexia","entry":"lipopexia"},{"slug":"lipophilic","entry":"lipophilic"}]}},"meta":{"arg":{"word":"lipoic-acid"},"requestId":"t8-Bqx2x0wqF6CNjN0bGF","requestStatus":"fulfilled"}},{"type":"luna/fetchExampleSentences/fulfilled","payload":{"data":{"tdb":[],"gbg":[]}},"meta":{"arg":{"word":"lipoic-acid"},"requestId":"UWFXUR4J4oaCzslkkFJdo","requestStatus":"fulfilled"}},{"type":"fetchDictionaryResults/fulfilled","payload":{"slugs":[{"entries":[{"__typename":"CollinsEntry","headword":{"displayForm":"lipoic acid","slug":"lipoic-acid"},"homonym":null,"note":null,"origin":null,"partOfSpeechGroups":[{"definitions":[{"crossReferencesConnection":{"edges":[]},"definitionSetChunks":"[{\"text\": \"biochem\", \"type\": \"lb_subject_field\"}, {\"type\": \"defgrp\", \"children\": [{\"text\": \"a sulphur-containing fatty acid, regarded as an element of the vitamin B complex, minute amounts of which are required for carbohydrate metabolism\", \"type\": \"text\"}]}]","examples":[],"idiom":null,"ordinal":1,"sense":null,"subdefinitions":[]}],"ordinal":1,"partOfSpeech":"noun"}],"pronunciations":[],"subEntry":[]}],"url":"lipoic-acid"}]},"meta":{"arg":{"slug":"lipoic-acid"},"requestId":"Ev0Xxn6AIHxHftz5bQe_0","requestStatus":"fulfilled"}},{"type":"fetchResultsData/fulfilled","payload":{"data":{"url":"lipoic-acid","displayForm":"lipoic acid","canonicalSlug":"lipoic-acid","content":[{"source":"collins","entries":[{"id":"acfaa9484.6bfb.1014.b87b.c2803370a23a.1","type":"normal","entry":"lipoic acid","entrySyllabified":null,"entryVariants":"","homograph":null,"pronunciation":{"audio":null,"spell":null,"ipa":""},"predefinitionContent":"","posBlocks":[{"pos":"noun","posSupplementaryInfo":"","definitions":[{"order":1,"type":"simple","predefinitionContent":"biochem","definition":"a sulphur-containing fatty acid, regarded as an element of the vitamin B complex, minute amounts of which are required for carbohydrate metabolism","postdefinitionContent":""}]}],"origin":"","supplementaryNotes":[],"variantForms":[],"referenceData":[],"relatedForms":[],"derivedForms":[]}]}],"nearbyWordOrdinal":90485,"index-rank-01":["lipoic acid"],"index-rank-02":[],"index-rank-03":[],"index-rank-04":[],"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":[],"tunaSlug":null,"isFeaturedMetaSlug":false}},"meta":{"arg":{"word":"lipoic-acid"},"requestId":"iRiQUoDm8uiDQmgxzJWqB","requestStatus":"fulfilled"}},{"type":"fetchSpellSuggestions/fulfilled","payload":{"data":{"luna":["lippick","lipoid","Lippi","lipo","biopic","lipo-","BIPOC","lipid","liposuck","Lompoc","lipoma","lithic","Li Po","logic","lotic","LPO","POC","lip","lip out","pic","topic","leipoa","LPG","laic","lip-","lipa","lip-lock","-lithic","loc.","-logic"],"tuna":["lithic","logic","lip","lipping","pic","topic","lippy","laic","epic","lips","lipped","loop","lapin","lilac","lyric","typic","lop","lock","loopy","pica","pick","pock","loping","LP","plica","PAC","lap","lop off","philippic","like i"],"lunaWithSlug":[{"displayForm":"lippick","slug":"lippick"},{"displayForm":"lipoid","slug":"lipoid"},{"displayForm":"Lippi","slug":"lippi"},{"displayForm":"lipo","slug":"li-po"},{"displayForm":"biopic","slug":"biopic"},{"displayForm":"lipo-","slug":"li-po"},{"displayForm":"BIPOC","slug":"bipoc"},{"displayForm":"lipid","slug":"lipid"},{"displayForm":"liposuck","slug":"liposuck"},{"displayForm":"Lompoc","slug":"lompoc"},{"displayForm":"lipoma","slug":"lipoma"},{"displayForm":"lithic","slug":"lithic"},{"displayForm":"Li Po","slug":"li-po"},{"displayForm":"logic","slug":"logic"},{"displayForm":"lotic","slug":"lotic"},{"displayForm":"LPO","slug":"lpo"},{"displayForm":"POC","slug":"poc"},{"displayForm":"lip","slug":"lip"},{"displayForm":"lip out","slug":"lip-out"},{"displayForm":"pic","slug":"pic"},{"displayForm":"topic","slug":"topic"},{"displayForm":"leipoa","slug":"leipoa"},{"displayForm":"LPG","slug":"lpg"},{"displayForm":"laic","slug":"laic"},{"displayForm":"lip-","slug":"lip"},{"displayForm":"lipa","slug":"lipa"},{"displayForm":"lip-lock","slug":"lip-lock"},{"displayForm":"-lithic","slug":"lithic"},{"displayForm":"loc.","slug":"loc"},{"displayForm":"-logic","slug":"logic"}],"tunaWithSlug":[{"displayForm":"lithic","slug":"lithic"},{"displayForm":"logic","slug":"logic"},{"displayForm":"lip","slug":"lip"},{"displayForm":"lipping","slug":"lipping"},{"displayForm":"pic","slug":"pic"},{"displayForm":"topic","slug":"topic"},{"displayForm":"lippy","slug":"lippy"},{"displayForm":"laic","slug":"laic"},{"displayForm":"epic","slug":"epic"},{"displayForm":"lips","slug":"lips"},{"displayForm":"lipped","slug":"lipped"},{"displayForm":"loop","slug":"loop"},{"displayForm":"lapin","slug":"lapin"},{"displayForm":"lilac","slug":"lilac"},{"displayForm":"lyric","slug":"lyric"},{"displayForm":"typic","slug":"typic"},{"displayForm":"lop","slug":"lop"},{"displayForm":"lock","slug":"lock"},{"displayForm":"loopy","slug":"loopy"},{"displayForm":"pica","slug":"pica"},{"displayForm":"pick","slug":"pick"},{"displayForm":"pock","slug":"pock"},{"displayForm":"loping","slug":"loping"},{"displayForm":"LP","slug":"lp"},{"displayForm":"plica","slug":"plica"},{"displayForm":"PAC","slug":"pac"},{"displayForm":"lap","slug":"lap"},{"displayForm":"lop off","slug":"lop%20off"},{"displayForm":"philippic","slug":"philippic"},{"displayForm":"like i","slug":"like%20i"}]}},"meta":{"arg":{"word":"lipoic-acid"},"requestId":"IaTIYiWOUmS3TBsHNMkAH","requestStatus":"fulfilled"}}]},"actionData":null,"errors":null}

lipoic acid

noun

Word of the Day