Aspects

angles of relationship between two moving planets; stages in a synodic cycle at which recognisable developments, transitions or crises can occur, found by subdividing the zodiac by divisors such as 2, 3, 4, 6, 8, 12. Minor aspects are finer angles found by dividing the zodiac by 5, 7 or 9.
Found on http://www.encyclo.co.uk/local/20417

Aspects

fundamental: conjunction and opposition; challenging: square, semisquare and sesquiquadrate; flowing: trine and sextile; incidental: semisextile and quincunx; applying: approaching exaction, into aspect; separating: moving out of aspect; retrograde: an aspect formed by either one or two planets in retrograde motion.
Found on http://www.encyclo.co.uk/local/20417

Aspects

The angular distance, calculated in specific number of degrees of the chart wheel, between two celes
Found on http://www.superglossary.com/Glossary/Science/Astrology/
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