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| single-celled colonial algae occurring in soil and on moist rocks and vegetation and also as a slime or scum on ponds and stagnant waters |
| the ability of a population to maintain or increase its numbers in succeeding generations |
teratogen te·rat·o·gen (tə-rāt'ə-jən, těr'ə-tə-)
n.
An agent, such as a virus, a drug, or radiation, that causes malformation of an embryo or a fetus.
| teratogen (tə-rāt'ə-jən, těr'ə-tə-) Pronunciation Key
An agent, such as a virus, a drug, or radiation, that can cause malformations in an embryo or fetus. |