01 n. A high point of land or rock projecting into the sea beyond the line of coast; a headland; a high cape.
pl.
Promontories ((#))
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1.
A high point of land or rock projecting into the sea beyond the line of coast; a headland; a high cape.(Phys. Geog.)“Like one that stands upon a promontory.” — Shak.
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2.
A projecting part. Especially: (a) The projecting angle of the ventral side of the sacrum where it joins the last lumbar vertebra. (b) A prominence on the inner wall of the tympanum of the ear.(Anat.)