First recorded in 1350–1400.
Comes via Middle English from the Latin word tortuōsus, which derives from the verb torquēre, “to twist, bend.”
Sign up for more Word of the Day!

\r\nEXAMPLES OF TORTUOUS\r\n

The tortuous road through the mountains made for a challenging but scenic drive.
The author's writing style was known for its elegant prose and tortuous plot twists.

\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/T03/T0390200.mp3","definitions":[{"partofspeech":"adjective","data":"full of twists, turns, or bends; twisting, winding, or crooked."}],"examples":[],"imageUrl":"https://www.dictionary.com/e/wp-content/uploads/2024/03/tortuous_IG.png","accentColor":"#0063D7"}},"status":"succeeded"}},"meta":{"requestId":"5mGyR8GlM2B4enB-GfLmK","requestStatus":"fulfilled"}},{"type":"fetchWordsNearby/fulfilled","payload":{"data":{"before":[{"slug":"biological-response-modifier","entry":"biological response modifier"},{"slug":"biological-rhythm","entry":"biological rhythm"},{"slug":"biological-shield","entry":"biological shield"},{"slug":"biological-value","entry":"biological value"},{"slug":"biological-warfare","entry":"biological warfare"}],"after":[{"slug":"biologism","entry":"biologism"},{"slug":"biologist","entry":"biologist"},{"slug":"biology","entry":"biology"},{"slug":"bioluminescence","entry":"bioluminescence"},{"slug":"biolysis","entry":"biolysis"}]}},"meta":{"arg":{"word":"biologics"},"requestId":"xtGrYjT7xuxPkuk1KeVNZ","requestStatus":"fulfilled"}},{"type":"luna/fetchExampleSentences/fulfilled","payload":{"data":{"tdb":[],"gbg":[]}},"meta":{"arg":{"word":"biologics"},"requestId":"RL6FI9TXfjDi6cBMhcSK1","requestStatus":"fulfilled"}},{"type":"fetchDictionaryResults/fulfilled","payload":{"slugs":[{"entries":[{"__typename":"CollinsEntry","headword":{"displayForm":"biologics","slug":"biologics"},"homonym":null,"note":null,"origin":null,"partOfSpeechGroups":[{"definitions":[{"crossReferencesConnection":{"edges":[]},"definitionSetChunks":"[{\"type\": \"defgrp\", \"children\": [{\"text\": \"biological products such as vaccines and therapeutic sera, used to induce immunity to infectious diseases or harmful substances of biological origin\", \"type\": \"text\"}]}]","examples":[],"idiom":null,"ordinal":1,"sense":null,"subdefinitions":[]}],"ordinal":1,"partOfSpeech":"noun:plural"}],"pronunciations":[{"ipa":"ˌbaɪəʊˈlɒdʒɪks"}],"subEntry":[]}],"url":"biologics"}]},"meta":{"arg":{"slug":"biologics"},"requestId":"QdbPTJQxR7aG_dZ-98eJp","requestStatus":"fulfilled"}},{"type":"fetchResultsData/fulfilled","payload":{"data":{"url":"biologics","displayForm":"biologics","canonicalSlug":"biologics","content":[{"source":"collins","entries":[{"id":"ac25c9e88.6bfb.1014.b87b.c2803370a23a.1","type":"normal","entry":"biologics","entrySyllabified":null,"entryVariants":"","homograph":null,"pronunciation":{"audio":null,"spell":null,"ipa":"(ˌbaɪəʊˈlɒdʒɪks)"},"predefinitionContent":"","posBlocks":[{"pos":"pl n","posSupplementaryInfo":"","definitions":[{"order":1,"type":"simple","predefinitionContent":"","definition":"biological products such as vaccines and therapeutic sera, used to induce immunity to infectious diseases or harmful substances of biological origin","postdefinitionContent":""}]}],"origin":"","supplementaryNotes":[],"variantForms":[],"referenceData":[],"relatedForms":[],"derivedForms":[]}]}],"nearbyWordOrdinal":16844,"index-rank-01":["biologics"],"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":"biologics"},"requestId":"092sVKfXT0KVamgevp7rp","requestStatus":"fulfilled"}},{"type":"fetchSpellSuggestions/fulfilled","payload":{"data":{"luna":[],"tuna":["biologic","biological","bio logical","bio-logical","biologist"],"lunaWithSlug":[],"tunaWithSlug":[{"displayForm":"biologic","slug":"biologic"},{"displayForm":"biological","slug":"biological"},{"displayForm":"bio logical","slug":"bio%20logical"},{"displayForm":"bio-logical","slug":"bio-logical"},{"displayForm":"biologist","slug":"biologist"}]}},"meta":{"arg":{"word":"biologics"},"requestId":"AZBZccXh7jJWV7VzteOz4","requestStatus":"fulfilled"}}]},"actionData":null,"errors":null}

biologics

plural noun

Word of the Day