luciferase
182
luciferase ~bioluminescence.
luciferine ~bioluminescence.
luminance the amount of visible light per unit area per unit solid angle emitted
by a light source. Typical measurement units are candela per square meter
and foot lambert.
luminescence ~bioluminescence.
lunar cycle a biological rhythm with minima or maxima once or twice every lunar
month (29.5 days), at the time of a certain moon phase. Examples are mating of several coral reef fish, and release of gametes or larvae by invertebrates such as Polychaeta, sponges or corals. Since tidal cycles run parallel
with lunar phases, it is difficult to distinguish among relevant triggers such
as moonlight or hydrographic phenomena.
lunar day mean period between two successive passages of the moon through a
certain meridian. As for the tides the effect of the moon predominates over
that of the sun, the lunar day (24.84 h) determines the periodicity of the
diurnal and semidiurnal tides.
lunar tide tide caused by the interaction between the moon and the rotating
earth (~tide). The lunar tide predominates over the solar tide notwithstanding the larger mass of the sun, because of the proximity of the moon to
the earth. The most important lunar tidal constituent is indicated by M2
(~partial tide) and has a period of 12.43 h.
lysocline ~carbonate dissolution.
Iysosomes cell organelles containing digestive enzymes, the lysozymes.
182
luciferase ~bioluminescence.
luciferine ~bioluminescence.
luminance the amount of visible light per unit area per unit solid angle emitted
by a light source. Typical measurement units are candela per square meter
and foot lambert.
luminescence ~bioluminescence.
lunar cycle a biological rhythm with minima or maxima once or twice every lunar
month (29.5 days), at the time of a certain moon phase. Examples are mating of several coral reef fish, and release of gametes or larvae by invertebrates such as Polychaeta, sponges or corals. Since tidal cycles run parallel
with lunar phases, it is difficult to distinguish among relevant triggers such
as moonlight or hydrographic phenomena.
lunar day mean period between two successive passages of the moon through a
certain meridian. As for the tides the effect of the moon predominates over
that of the sun, the lunar day (24.84 h) determines the periodicity of the
diurnal and semidiurnal tides.
lunar tide tide caused by the interaction between the moon and the rotating
earth (~tide). The lunar tide predominates over the solar tide notwithstanding the larger mass of the sun, because of the proximity of the moon to
the earth. The most important lunar tidal constituent is indicated by M2
(~partial tide) and has a period of 12.43 h.
lysocline ~carbonate dissolution.
Iysosomes cell organelles containing digestive enzymes, the lysozymes.