GC: n
S: NHS – https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7511357/ (last access: 9 October 2022); NCBI – https://pubmed.ncbi.nlm.nih.gov/8528777/ (last access: 9 October 2022).
N: 1. “action of protruding; state of sticking out,” 1640s, from French protrusion, noun of action from past-participle stem of Latin protrudere “to push out” (see protrude), or else a similar formation in English. Meaning “that which stands out beyond something adjacent” is by 1704.
2. State or condition of being thrust forward or projecting.
3. a part that sticks out
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bony protrusions on the outside of the elbow
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a roof with many protrusions.
4. the act of sticking out or the condition of something that sticks out
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The pain was caused by a/the protrusion of a disc in his lower back.
S: 1. OED – https://www.etymonline.com/search?q=protrusion (last access: 9 October 2022). 2. TERMIUM PLUS – https://www.btb.termiumplus.gc.ca/tpv2alpha/alpha-eng.html?lang=eng&i=1&srchtxt=protrusion&index=alt&codom2nd_wet=1#resultrecs (last access: 9 October 2022). 3&4. BritDict – https://www.britannica.com/dictionary/protrusion (last access: 9 October 2022).
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