5 syllables: Su, ccin, yl, chol, ine. Stress on ccin.
soo-SIN-il-koh-leen
/ˌsuːˈsɪnɪlˌkoʊliːn/
Succinylcholine is pronounced soo-SIN-il-koh-leen (/ˌsuːˈsɪnɪlˌkoʊliːn/). It has five syllables (Su-ccin-yl-chol-ine), with the stress on "ccin". Succinylcholine is a short-acting depolarizing neuromuscular blocker used to induce skeletal muscle paralysis, typically to facilitate rapid sequence intubation. It acts quickly and has a brief duration of action, requiring careful monitoring for apnea and potential fasciculations. It is administered via intravenous injection in anesthesia and emergency medicine settings.
nounSuccinylcholine is a short-acting depolarizing neuromuscular blocker used to induce skeletal muscle paralysis, typically to facilitate rapid sequence intubation. It acts quickly and has a brief duration of action, requiring careful monitoring for apnea and potential fasciculations. It is administered via intravenous injection in anesthesia and emergency medicine settings.
- You may mispronounce the 'kaɪl' portion by flattening the diphthong; ensure you produce a clear /kaɪ/ as the stressed nucleus. - The final -ine should be clearly enunciated as /ɪn/, not devoiced or elided; practice with gentle alveolar nasal closure. - The sequence '-choline' can tempt you to overemphasize /tʃ/; focus on the /kaɪlɪn/ cluster with minimal interference from prior consonants. Practice by isolating /ˌsuːsɪnɪˈkaɪlɪn/ and comparing slower vs. faster speech to maintain segmental integrity.
How to Pronounce Succinylcholine
"The anesthesiologist administered succinylcholine to facilitate rapid intubation."
"During the procedure, succinylcholine was given to achieve muscle relaxation for the airway attempt."
"Patients receiving succinylcholine require continuous monitoring for respiratory depression."
Prime pronunciation: /ˌsuː-sɪnɪˈkaɪlɪn/ (US/UK) with primary stress on the /kaɪ/ syllable. Break it as su-ci-n(y)-chol-ine, but the usual clinical pronunciation is suh-SIN-uh-KY-line with the /kaɪ/ in the stress peak. Mouth posture: start with a soft neutral vowel, then /ˈkaɪ/ as a bright, closed front diphthong, followed by a clear final /ɪn/. Audio examples: consult medical diction guides or Forvo for native speaker renditions, but aim for clear alveolar and palatal consonants without extra vowel insertion.
Mistake 1: Slurring the /ˈkaɪl/ segment into /kaɪl/ as a long, flat vowel; correction: stress the diphthong in /kaɪ/, making it a crisp, two-part glide. Mistake 2: Misplacing stress, saying su-SIN-nuh-KY-lin instead of su-SIN-i-KY-lin; correction: keep primary stress on the /kaɪ/ syllable and reduce secondary emphasis. Mistake 3: Dropping the final -ine or turning it into -in; correction: pronounce the final /ɪn/ clearly as in -line. Practice with segmental focus: /ˌsuːˌsɪnɪˈkaɪlɪn/ and compare to common ESL mispronunciations.
US tends to reduce the final syllable slightly and maintains rhotics; UK often has non-rhotic tendencies but may still articulate the final /r/ absent. Australia generally aligns with UK vowel quality but with a more centralized /ɪ/ in unstressed positions. Core marker: /kaɪl/ remains the stressed nucleus, but vowel length and quality of /ʊ/ vs /uː/ in the first syllables can shift. Forvo or YouGlish can illustrate subtle rhoticity differences and schwa reductions in rapid speech.
The difficulty lies in the multi-syllabic structure and a cluster of consonants: /ˌsuː-sɪ-nɪ-ˈkaɪ-lɪn/ includes a tight /sɪnɪ/ sequence, a stressed /kaɪ/ diphthong, and the final nasal /n/ after an /l/ sequence. Quick utterances compress vowels, blurring syllable boundaries. Mastery comes from slow practice of the /kaɪ/ diphthong and deliberate articulation of the ending -lɪn, ensuring you don’t turn it into an indistinct -lin. Use minimal pairs to lock precise articulation.
The 'ch' in choline is not the /tʃ/ you might expect; in succinylcholine, the sequence is not a separate /tʃ/ sound but part of the /kaɪlɪn/ cluster. The most critical nuance is maintaining the /kaɪ/ stress with a crisp /l/ before the final /ɪn/. Thinking of it as su-ci-n(y)-ce-line can mislead; instead, keep /kaɪl/ as one strong syllable and softly articulate the final /ɪn/. Practicing syllable-timed cadence helps.
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- US: rhotic, pronounce /ˌsuːsɪnɪˈkaɪlɪn/ with a clearer /r/ only if the word ends with orthographic r; here, no /r/. Vowels: /uː/ might be realized as a longer, tenser vowel; keep lip rounding moderate. - UK: often non-rhotic; ensure you don’t insert extra /r/; vowel quality tends toward crisp /uː/ or /juː/ depending on speaker. - AU: tends to merge some vowels toward /ɔː/ or /ə/ in fast speech; maintain /kaɪ/ as a strong diphthong and keep final /ɪn/ distinct. Use IPA reference: /ˌsuːsɪˈnɪkaɪlɪn/ or /ˌsjuːsɪˈkaɪlɪn/ depending on speaker.
Succinylcholine derives from the chemical name succinyl- and choline. Succinyl refers to the succinic acid moiety—a four-carbon dicarboxylic acid—bonded to a choline group, yielding a quaternary ammonium compound. The term choline itself traces to the Greek chole for bile, via the French cholique, but in pharmacology, it denotes the quaternary ammonium neurotransmitter-like moieties essential for neuromuscular transmission modulation. The compound was developed in the mid-20th century as a synthetic depolarizing agent; it substitutes acetylcholine at nicotinic receptors, causing sustained depolarization and flaccid paralysis. The first clinical use was in the 1950s by anesthesia researchers seeking rapid onset, short duration muscle paralysis for intubation. Over decades, its pharmacology, dosing, and safety profiles have been refined, including conflict with metabolic abnormalities and risk of hyperkalemia in certain patients. The molecule’s name therefore documents both its chemical fragments and its intended pharmacodynamic action as a fast-acting skeletal muscle blocker.
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Words that rhyme with "Succinylcholine"
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