แอลดอล

ɛɛn-dɔɔn

Meanings

1NounC2

aldol; β-hydroxy carbonyl compound

An organic compound with a hydroxyl group on the beta carbon relative to an aldehyde or ketone carbonyl group, typically produced by an aldol addition reaction.

Examples

นักศึกษาnák-sʉ̀k-sǎaนักศึกษาnák-sʉ̀k-sǎauniversity/college studentวิชาwí-chaaวิชาwí-chaa1subject; course; field of study2classifier: courses/subjects3knowledge; skill; discipline4esoteric or magical artsเคมีอินทรีย์kee-mii-in-siiเคมีอินทรีย์kee-mii-in-siiorganic chemistryต้องdtɔ̂ngต้องdtɔ̂ng1must; have to2must; bound toเรียนรู้riian-rúuเรียนรู้riian-rúu[to] learn; acquire knowledgeที่จะtîi-jàที่จะtîi-jà1that/which/who will; that is/are going to2to (after a noun/adj; infinitival 'to')ระบุrá-bùระบุrá-bù1[to] specify; state explicitly2[to] identify; pinpointโครงสร้างkroong-sâangโครงสร้างkroong-sâangstructure; frameworkของkɔ̌ɔngของkɔ̌ɔng1of; belonging to2thing; item; stuff3property; goodsแอลดอลɛɛn-dɔɔnแอลดอลɛɛn-dɔɔn1aldol; β-hydroxy carbonyl compound23-hydroxybutanal (the prototypical aldol)ซึ่งsʉ̂ngซึ่งsʉ̂ng1which; that (relative pronoun)2which/and this; introducing explanationมีmiiมีmii1[to] have; possess2there is/are; exist3[to] experience; undergoทั้งtángทั้งtáng1whole; entire2all3both4altogether; entirelyหมู่ไฮดรอกซิลmùu-hai-drɔ̀ɔk-sinหมู่ไฮดรอกซิลmùu-hai-drɔ̀ɔk-sinhydroxyl group (chemistry)และlɛ́และlɛ́and (coordinating)หมู่คาร์บอนิลmùu-kaa-bɔɔ-ninหมู่คาร์บอนิลmùu-kaa-bɔɔ-nincarbonyl group (chemistry)อยู่yùuอยู่yùu1[to] live; reside; stay2to be (located); be at3progressive/continuative marker4to exist; remainบนbonบนbon1on; upon; in; above2upper; top3[to] vow (at a shrine)คาร์บอนkaa-bɔɔnคาร์บอนkaa-bɔɔn1carbon (element, C)2carbon emissions; carbon footprint (by metonymy)3carbon paperที่tîiที่tîi1place; spot; seat; space2at; in; to (a place)3classifier: places; seats; individual servings4that/which/who (relative marker)5when; the time that (time marker)6ordinal markerติดกันdtìt-ganติดกันdtìt-gan1adjacent; side-by-side2consecutively; in a row3side-by-side; next to each other4[to] be attached/contiguous
Organic chemistry students must learn to identify the structure of an aldol, which has both a hydroxyl group and a carbonyl group on adjacent carbons.
3 more examples
2NounC2

3-hydroxybutanal (the prototypical aldol)

3‑Hydroxybutanal, historically called “the aldol,” the archetypal product of the aldol addition between acetaldehyde molecules.

Examples

ในnaiในnai1in; inside; within2during; in (time)3of; belonging to (formal)ห้องปฏิบัติการhông bpà-dtì-bàt gaanห้องปฏิบัติการhông bpà-dtì-bàt gaanlaboratory; labเคมีอินทรีย์kay-mee in-seeเคมีอินทรีย์kay-mee in-seeorganic chemistryนักศึกษาnák sèuk-săaนักศึกษาnák sèuk-săauniversity/college studentกำลังgam-langกำลังgam-lang1currently; in the middle of2power; strength3power (physics)4troops; forcesเรียนรู้riian róoเรียนรู้riian róo[to] learn; acquire knowledgeปฏิกิริยาbpà-dtì-gì-rí-yaaปฏิกิริยาbpà-dtì-gì-rí-yaa1reaction; response2chemical reactionการสังเคราะห์gaan săng-krórการสังเคราะห์gaan săng-krór1synthesis (general)2synthesis (chemical)แอลดอลaen-donแอลดอลaen-don1aldol; β-hydroxy carbonyl compound23-hydroxybutanal (the prototypical aldol)จากjàakจากjàak1from; away from2[to] leave; depart; part from3nipa palmอะàอะà1uh; um (hesitation)2huh?; what? (prompt/attention)3softening/filler particle (colloquial)ซีseeซีsee1C (the letter)2sentence-final particle (soft urging)3TV series/season (informal, from ซีรีส์)ทัลthánดีdeeดีdee1good; of good quality2kind; virtuous3well; nicely4gall; bileไฮhaiไฮhai1high; elevated2posh; high-society; fancy (slangy)ด์สองsŏngสองsŏng1two; 22secondโมเลกุลmoh-lay-gunโมเลกุลmoh-lay-gunmolecule
In the organic chemistry lab, students are learning the reaction for synthesizing aldol from two molecules of acetaldehyde.
3 more examples

Tones

See how the spelling sets each syllable's tone, step by step.

Why is แอลดอล said แอน-ดอล?

ɛɛn-dɔɔn

The tone rules below use the spoken syllables.

2 syllables · pick one to see its rule

How the tone is decided

  1. Consonant classMid class
  2. Tone markNo tone mark
  3. Syllable endingLive syllableEnds in -ล, a sonorant, so it is live.

Mid class consonants

กจฎฏดตบปอ

Result

Mid tone

ɛɛn

Level, in your normal speaking voice.

Mid class + No tone mark + Live syllable → Mid

Tone chart

Every class and spelling pattern, with this syllable outlined.

Mid classHigh classLow class
No mark + liveMidRisingMid
No mark + dead shortLowLowHigh
No mark + dead longLowLowFalling
Mai ekLowLowFalling
Mai thoFallingFallingHigh
Mai triHigh——
Mai chattawaRising——