funnelshaped

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angusticorn trumpet — (ARTHROPODA: Insecta) In Diptera, a respiratory structure of Culicidae pupae bearing the longest axis vertically and approximately in line with the stem, funnelshaped when closed, with a split (meatal cleft) down one side allowing it to open… … Dictionary of invertebrate zoology
geological organ — A cylindrical or funnelshaped cavity in relatively soluble bedrock which typically has a vertical orientation and is partly or wholly filled with material similar to the overlying sediment cover. They are produced by solution of bedrock and… … Lexicon of Cave and Karst Terminology
Trittkarren — (German.) These are best described as heel print karren because they resemble the imprint of a heel. They are nearly connected with subhorizontal, adjacent, flat plains and migrate upslope by cutting ‘steps’ through the process of… … Lexicon of Cave and Karst Terminology

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