Contents. pollen definition: 1. a powder, produced by the male part of a flower, that causes the female part of the same type of…. Synonyms . 1.1 Noun. A pollen grain is a microscopic body that contains the male reproductive cell of a plant. Pollen is a powdery substance consisting of pollen grains which are male microgametophytes of seed plants, which produce male gametes (sperm cells). It is crucial in a plant's fertilization process. Each microsporangium contains pollen mother cells. pollen grain translation in English-Tagalog dictionary. pollen grain. microgametophyte; Translations . See more. Pollen definition is - a mass of microspores in a seed plant appearing usually as a fine dust. Definition of pollen grain in the Definitions.net dictionary. All Free. pollen grain - WordReference English dictionary, questions, discussion and forums. Definition from Wiktionary, the free dictionary. pollen grain (plural pollen grains) A single male reproductive particle of which the pollen of a plant consists. What does pollen grain mean? The pollen is carried by some agent (wind, or some animal) to the receptive … Found 18 sentences matching phrase "pollen grain".Found in 2 ms. Pollen, 2 meanings, Noun: Fine powder in general, fine flour (16th century usage documented by the OED; no longer common.) Pollen grains have a tough coat that has a form characteristic of the pollen-producing plant and which can still be recognized in some archaeological deposits. n. A microspore of a seed plant, containing a partially developed male gametophyte. Information and translations of pollen grain in the most comprehensive dictionary definitions resource on the web. noun. pollen grain synonyms, pollen grain pronunciation, pollen grain translation, English dictionary definition of pollen grain. 1.1.1 Synonyms; 1.1.2 Translations; English Noun . Pollen grains have a hard coat made of sporopollenin that protects the gametophytes during the process of their movement from the stamens to the pistil of flowering plants, or from the male cone to the female cone of coniferous plants. Each of the microscopic particles, typically single cells, of which pollen is composed. Meaning of pollen grain in English: pollen grain. Jump to navigation Jump to search. Pollen definition, the fertilizing element of flowering plants, consisting of fine, powdery, yellowish grains or spores, sometimes in masses. Showing page 1. See synonyms for pollen grain. Meaning of pollen grain. Define pollen grain. These undergo meiosis, and produce pollen grains, which produce the male gametes . 1 English. Learn more. The pollen is released by the opening of the anther.