4 syllables: hy, dro, pho, bic. Stress on pho.
/ˌhaɪdroʊˈfoʊbɪk/
Say it backHydrophobic describes a substance or molecule that repels water; it tends to be nonpolar and does not mix with water, forming droplets or separating from aqueous solutions. In biology and chemistry, it refers to surfaces or compounds that avoid contact with water, often due to nonpolar characteristics. The term is commonly used in materials science, biochemistry, and cell biology to contrast with hydrophilic substances.
"The hydrophobic tail of a phospholipid anchors itself inside the membrane, avoiding the watery exterior."
"Hydrophobic coatings help prevent water damage by repelling moisture on surfaces."
"Nonpolar compounds are typically hydrophobic and thus do not dissolve in water."
Say hi-dro-PHOB-ic with the primary stress on PHOB. IPA: US /ˌhaɪdroʊˈfɪbɪk/ or /ˌhaɪdroʊˈfoᴹbɪk/?; UK /ˌhaɪ.drəˈfəʊ.bɪk/; AU /ˌhaɪ.drɒˈfəː.bɪk/. Focus on the second syllable group -phob- as the main stress peak, with a clear /f/ before -ɪk. Ensure the vowel in the first suffix is a longer /oʊ/ in US and /oʊ/ in UK, and /ɒ/ in AU for the stressed second part. Think “high- dro- PHO-bic.”
Common errors: treating -phobic as pho-bik with a flat /a/ tone; misplacing the stress on the first syllable (hydro-); truncating the r-coloring in 'hydro' resulting in /haɪdro/ rather than the full /haɪdroʊ/. Correction: emphasize the second syllable group: /ˌhaɪdroʊˈfɪbɪk/ in US, and practice the /fəʊ/ diphthong in UK. Keep the /f/ consonant clear before -ɪk. Practice slow: hi-dro-PHO-bic, then speed up maintaining the diphthongs and stress.
US tends to /ˌhaɪdroʊˈfɪbɪk/ with a rhotic r and a long /oʊ/; UK tends toward /ˌhaɪ.drəˈfəʊ.bɪk/ with non-rhotic /r/ and a /əʊ/ diphthong; AU often shows /ˌhaɪ.drɒˈfəː.bɪk/ with broad vowels and a less pronounced /r/ and an /ɒ/ in the first vowel of hydro. IPA notes: US rhotic, UK non-rhotic, AU varying by speaker but often British-influenced. Tailor practice to your accent by focusing on the second syllable cluster -pho- and the final -bɪk, ensuring the diphthongs match your variant.
Three main challenges: the multi-syllabic construction with a three-morpheme face (hydro- and -phobic) creates shifting stresses; the /droʊ/ vs /drə/ vowel in hydro can be tricky depending on accent; the cluster -phobic combines /f/ + /ɪ/ plus /bɪk/, so keeping /bɪk/ crisp while not diluting the /f/ can be hard. Focus on placing primary stress on the -phobic portion, maintain a clear /oʊ/ in the hydro segment, and execute the -bɪk with a strong /b/ and corrected vowel.
The word’s balance of a hydrophobic vowel environment (water-adverse) and a phonic sequence that shifts from a long diphthong to a final /ɪk/ requires precise mouth positioning: start with a tall front vowel in /haɪ/ then glide into /droʊ/ or /drə/ depending on accent, then land on the crisp /fɪbɪk/. The unique challenge is the transition from 'hydro' to 'phobic' with preserved secondary stress on -pho- and clear final -bɪk.
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Hydrophobic is formed from the Greek hydor (water) + phobos (fear) combined with -ic, a suffix meaning having the characteristics of. The term first appeared in the context of chemistry and biology in the early 20th century as scientists described surfaces or molecules that actively repel water. The root hydor signals the relationship to water, while -phobic conveys an aversion or repulsion. In chemistry, hydrophobicity describes nonpolar molecules or regions that avoid contact with polar water, driven by unfavorable enthalpic and entropic changes when water molecules reorganize around nonpolar groups. The concept gained prominence with the understanding of lipid bilayers and protein folding, where hydrophobic amino acid residues cluster away from water. Over decades, the idea extended to materials science, where hydrophobic coatings and self-cleaning surfaces leverage low surface energy to minimize water adhesion. First known uses appear in discussions of solubility, emulsions, and surface science, gradually narrowing to a precise property label: a molecule or surface that resists dissolution or wetting by water due to nonpolarity and low surface energy.
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Words that rhyme with "hydrophobic"
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