|having pleasant, good-natured personal qualities; friendly and
sociable, agreeable; willing to accept the wishes or suggestions
of others| |constant; habitual; inveterate:| |coherence or
coherency (kəʊˈhɪərəns, kəʊˈhɪərənsɪ)| |1.||logical or natural
connection or consistency| |2.||another word for cohesion|
|coherency or coherency| |coherence (kō-hîr'əns, -hěr'-)
Pronunciation Key A property holding for two or more waves or
fields when each individual wave or field is in phase with every
other one. Lasers, for example, emit almost perfectly coherent
light; all the photons emitted by a laser have the same
frequency and are in phase. Since quantum states can be
described by a wave equation, coherence can hold for quantum
states in general, though only among bosons. Coherence is
generally possible in physical systems that may undergo
superposition. Maintaining coherence of light is important in
fiber optic communications. See also Bose-Einstein condensate. a
fixed relationship between the phase of waves in a be