eellike aquatic North American salamander with small forelimbs and no hind limbs; have permanent external gills
an acoustic device producing a loud often wailing sound as a signal or warning
a warning signal that is a loud wailing sound
a sea nymph (part woman and part bird) supposed to lure sailors to destruction on the rocks where the nymphs lived; "Odysseus ordered his crew to plug their ears so they would not hear the Siren's fatal song"
a life preserver consisting of a connected pair of inflatable bags that fit under a person's arms and provide buoyancy; used by children learning to swim
the basic unit of luminous intensity adopted under the Systeme International d'Unites; equal to 1/60 of the luminous intensity per square centimeter of a black body radiating at the temperature of 2,046 degrees Kelvin
examine eggs for freshness by holding them against a light
a written communication in a second language having the same meaning as the written communication in a first language
a uniform movement without rotation
(genetics) the process whereby genetic information coded in messenger RNA directs the formation of a specific protein at a ribosome in the cytoplasm
(mathematics) a transformation in which the origin of the coordinate system is moved to another position but the direction of each axis remains the same
(music) playing in a different key from the key intended; moving the pitch of a piece of music upwards or downwards
the act of reversing the order or place of
(electricity) a rearrangement of the relative positions of power lines in order to minimize the effects of mutual capacitance and inductance; "he wrote a textbook on the electrical effects of transposition"
(mathematics) the transfer of a quantity from one side of an equation to the other along with a change of sign
(genetics) a kind of mutation in which a chromosomal segment is transfered to a new position on the same or another chromosome