narrow ridge less prominent than a crest
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narrow ridge less prominent than a crest
narrow ridge usually prominent
crest of a ridge
long narrow upper section of crest
a narrow prominent ridge
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crest of a small hill
crest of a low hill
crest of marginal ridge
narrow ridge of bone
a low point along a ridge
shape of a crest
crest of a hill or mountain
a moderately raised ridge
crest of mid oceanic ridge
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