1. Like bitumen
   - bitumenoid

See also: bitumen

• hydroxyl group
• hydroxyl ion
• hydroxyl radical
• hydroxylamine
• hydroxymethyl
• hydroxyproline
• hydroxytetracycline
• hydroxyzine
• hydroxyzine hydrochloride
• Hydrozoa
• hydrozoan
• Hydrus
• Hyemoschus
• Hyemoschus aquaticus
• hyena
• hyena dog
• hyerreal
• hyerreal number
• hyetology
• Hygeia
• hygiene
• hygienic
• hygienical
• hygienically
• hygienics