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In some senses, appendix is marked as obsolete. Watch for register when choosing this word.
appendix
/əˈpɛn.dɪks/
noun 4
Collocations
5(noun.)
ADJ
burst, grumbling
inflamed, perforated, ruptured
The doctor discovered that Maria's appendix was inflamed and needed to be removed immediately.
VERB + APPENDIX
remove, take out
The surgeon decided to remove her appendix after the infection became serious.
have out
My grandfather had his appendix out when he was a teenager.
APPENDIX + VERB
burst, rupture
When the appendix bursts, it can cause a serious infection inside the abdomen.
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