Pollen Definition. Group association stigma is a type of stigma placed on people based on their classification within a group. Stigma definition, a mark of disgrace or infamy; a stain or reproach, as on one's reputation. In the green one-celled organism Euglena, the For the term stigma may also exist other definitions and meanings, the meaning and definition indicated above are indicative not … It continues to broaden its scope as we supply it regularly with new terms while enriching the existing terms further with fresh information. This could be a religion, an ethnicity or even a political group. Eyespot, a heavily pigmented region in certain one-celled organisms that apparently functions in light reception. Did You Know? The stigma, together with the style and ovary comprises the pistil, which in turn is part of the gynoecium or female reproductive organ of a plant. Biology Dictionary is the largest dictionary of biology terms that you can easily access online. The pollen grains are termed microgameteophytes, and consist of a sporopollenin coating which serves to protect the gameteophytes as they are transported from the stamens (male) or male cone to the pistil (female) or … Stigma definition is - a mark of shame or discredit : stain. stigma [stig´mah] 1. any mental or physical mark or peculiarity which aids in the identification or in the diagnosis of a condition. The style of a flower is the stalk that supports the stigma and connects it to the ovary. 4. in botany, the uppermost part of a pistil, which secretes a moist, sticky substance to trap and hold the pollen that reaches it. The term is also applied to certain light-sensitive cells in the epidermis (skin) of some invertebrate animals (e.g., worms, starfishes). Glossary of biology terms . (noun) Labels that associate people with unfavorable or disapproved behavior and characteristics.Stigma Pronunciation. Pollen refers to the powdery product synthesized by seed plants responsible for the production of the male gametes of the plant (shown below).. 3. follicular stigma. Physical stigma is stigma that is placed on people based on their physical appearance. Deformity and unusual appearance are examples of physical stigma. How to use stigma in a sentence. 2. a mark, spot, or pore on the surface of an organ or organism. Biology. See more. Learn stigma with free interactive flashcards. Learn more. Meaning and definition of stigma : The sticky part of a flower's carpel, which traps pollen grains. The stigma forms the distal portion of the style or stylodia. Choose from 500 different sets of stigma flashcards on Quizlet. [countable] (biology) the part in the middle of a flower where pollen is received Word Origin late 16th cent. Definitions of Stigma (noun) The social phenomenon or process whereby individuals that are taken to be different in some way are rejected by the greater society in with they live based on that difference. (denoting a mark made by pricking or branding): via Latin from Greek stigma ‘a mark made by a pointed instrument, a dot’; related to the noun stick . stigma definition: 1. a strong feeling of disapproval that most people in a society have about something, especially….
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