Bottleshaped see lagena ampulla ampulliform

bouquet stage A meiotic prophase stage, including leptotene, zygotene and pachytene, in certain species where the chromosomes are oriented by one or both ends towards one point of the nuclear envelope.

bourrelet n. [F. bourrelet, circular pad] 1. A ridgelike prominence or rounded edge. 1. (ARTHRO: Insecta) see pa-rameres. 2. (ECHINOD) A raised prominence on the inter-ambulacral plates at the edge of the mouth. 3. (MOLL: Bi-valvia) A ligamental area anterior and posterior to the re-silifer.

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