Pollen
101pollen tube — Bot. the protoplasmic tube that is extruded from a germinating pollen grain and grows toward the ovule. [1825 35] * * * …
102pollen grain — noun A single male reproductive particle of which the pollen of a plant consists. Syn: microgametophyte …
103pollen parent — noun The plant that contributes male reproductive material, the pollen …
104pollen tube — noun the tube that develops from the wall of a pollen grain and, in seed plants, provides a passage through which the male nuclei reach the embryo sac to effect fertilization …
105pollen count — noun the measurement of the number of grains of pollen in a cubic meter of air …
106pollen analysis — the study of preserved pollen particles used to reconstruct past climatic conditions based on the types of plants prevalent at the time …
107pollen extract — a preparation of the pollen of certain plants, such as ragweed, used in the diagnosis and treatment of inhalant allergy …
108pollen basket — noun Entomology a flattened area fringed with hairs on the hind leg of a social bee, used for carrying pollen …
109pollen count — noun an index of the amount of pollen in the air …
110pollen tube — noun Botany a hollow tube which grows out from a pollen grain into the stigma of a flower on which it is deposited …
