fifty-fifth (adjective)
The ordinal number of fifty-five in counting order.
mirror symmetry (noun)
(physics) parity is conserved in a universe in which the laws of physics are the same in a right-handed system of coordinates as in a left-handed system.
stopes (noun)
Birth-control campaigner who in 1921 opened the first birth control clinic in London (1880-1958).
conservation of parity (noun)
(physics) parity is conserved in a universe in which the laws of physics are the same in a right-handed system of coordinates as in a left-handed system.
parity (noun)
(obstetrics) the number of liveborn children a woman has delivered.
marie stopes (noun)
Birth-control campaigner who in 1921 opened the first birth control clinic in London (1880-1958).
santa maria de belem (noun)
Port city in northern Brazil in the Amazon delta. Main port and commercial center for the Amazon River basin.
space-reflection symmetry (noun)
(physics) parity is conserved in a universe in which the laws of physics are the same in a right-handed system of coordinates as in a left-handed system.
marie charlotte carmichael stopes (noun)
Birth-control campaigner who in 1921 opened the first birth control clinic in London (1880-1958).
blue jet (noun)
Atmospheric discharges (lasting 10 msec) bursting from the tops of giant storm clouds in blue cones that widen as they flash upward.
