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