fifty-fifth (adjective)
The ordinal number of fifty-five in counting order.
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.
psilotatae (noun)
Whisk ferns. Comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs.
dandle (verb)
Move (a baby) up and down in one's arms or on one's knees.
alkali (noun)
Any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water.
contrabandist (noun)
Someone who imports or exports without paying duties.
lacrimation (noun)
Shedding tears.
t (noun)
A base found in DNA (but not in RNA) and derived from pyrimidine. Pairs with adenine.
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.
jackass (noun)
A man who is a stupid incompetent fool.
