| 单词 | chalaza |
| 释义 | BETA Examples ofchalazaDictionary> Examples ofchalaza chalazaisn’t in the Cambridge Dictionary yet. You can help! Add a definition Thechalaza, where the ovule was attached to the fruit, was the last portion of the seed to become impermeable. From theCambridge English Corpus The nucellus is uniseriate, contains a thin-walled seed megaspore, and appears to be connected to the integument towards thechalazaonly. From theCambridge English Corpus A spine may either be a "chalaza" (having a single point) or a "scolus" (having multiple points). From Wikipedia Located opposite from the micropyle is thechalazawhere the nucellus is joined to the integuments. From Wikipedia In chalazogamous fertilization, the pollen tubes penetrate the ovule through thechalazarather than the micropyle opening. From Wikipedia He describes the standard arrangement in angiospermsthe nucellus joined by thechalazato the integuments, which surround the nucellus except at the micropyle, through which the pollen tubes enter. From Wikipedia These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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