|(in chemistry) indicating a group or radical: methyl; carbonyl|
|[from Greek hulē wood, matter]|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
|a gadget; dingus; thingumbob.|
A monovalent organic acid radical: carbonyl.
A suffix used to form the chemical names of organic compounds when they are radicals (parts of larger compounds), such as ethyl and phenyl.
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