Flashcards in Vocabulary - science-technology Deck (51)
the point on which a lever rests or is supported and on which it pivots (a thing that plays a central or essential role in an activity, event, or situation)
the SI unit of force. It is equal to the force that would give a mass of one kilogram an acceleration of one meter per second per second, and is equivalent to 100,000 dynes.
1. a stand of trees, especially in the southwestern US; a grove 2. (historical) a mound forming the site of a castle or camp
A thicket of small trees or shrubs; a coppice
any of a number of small insectivorous songbirds that typically have a warbling song
A plant that produces leaves and roots the first year and flowers and fruit the second
a branch of mathematics concerned with those properties of geometric configurations (as point sets) which are unaltered by elastic deformations (as a stretching or a twisting) that are homeomorphisms
A geologic process in which one edge of one lithospheric plate is forced below the edge of another. The denser of the two plates sinks beneath the other. As it descends, the plate often generates seismic and volcanic activity (from melting and upward migration of magma) in the overriding plate.
a crevice; crack
a scientist who studies fossils. Paleontology breaks down to the Greek for "ancient" (paleo), "being" (onto-), and "study" (-logy).
hot fluid or semifluid material below or within the earth's crust from which lava and other igneous rock is formed by cooling
concerned with iron or its compounds
an inclined channel for conveying water (as for power) : a ravine or gorge with a stream running through it
Referring to soil deposits left by running water.
sulfur — now usually used in the phrase fire and brimstone to refer to descriptions of hell
A somewhat continuous unstratified metal- bearing vein
division of animals and plants, below a family and above a species
(biology) the haploid set of chromosomes in a gamete or microorganism, or in each cell of a multicellular organism.-- the complete set of genes or genetic material present in a cell or organism.
taxonomy, taxonomist (per)
the branch of science concerned with classification, especially of organisms; systematics
center; soft part of stem; essence
PETRI DISH. : a small shallow dish of thin glass or plastic with a loose cover used especially for cultures in bacteriology
A cell whose nucleus unites with that of another cell to form a new organism. A gamete contains only a single (haploid) set of chromosomes. Animal egg and sperm cells, the nuclei carried in grains of pollen, and egg cells in plant ovules are all gametes. Also called germ cell, reproductive cell, sex cell
to cause (something) to happen quickly or suddenly. : to become separated from a liquid especially by a chemical process
frost formed on cold objects by the rapid freezing of water vapor in cloud or fog
1. (of weather) mild 2. (of a person or a person's actions) merciful.
1. relating to or characteristic of the climatic zone south of the Arctic, especially the cold temperate region dominated by taiga and forests of birch, poplar, and conifers 2. relating to or denoting a phytogeographical kingdom comprising the arctic and temperate regions of Eurasia and North America
damp and cold