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aneroid barograph

noun Meteorology.
  1. an aneroid barometer equipped with an automatic recording mechanism.
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Also called an·er·oid·o·graph [an-uh-roi-duh-graf, -grahf] /ˌæn əˈrɔɪ dəˌgræf, -ˌgrɑf/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018