Answer: pis
AnswerCrossword Clue
PISMagnum et al.
PISTrenchcoated antiheroes
PISOmicron followers
pisPI, to jumble or disorder
PISLetters used by geometers
PISLetters used in geometry
PISMany crime fiction protagonists, briefly
PISGreek consonants used in circle formulas
PISSummations : sigmas :: products : ...
PISPair from Peloponnesus?
PISGeometry students' symbols
PIS... aller (last resort)
PISDetectives for hire, for short
PISTV's Magnum and Rockford, for two
PISMagnum of TV et al.
PISFollowers of omicrons
PIS"... for Peril": Grafton
PISMagnum and others
PISSome Greek letters
PISOmicron trailers
PISParts of geometry calculations
PISGreek letters.
PISPastries?
PIS...-aller (last resort)
PISMathematical constants
PISTV's Magnum and the like
PISCircumference-figuring figures
PISMagnum and others, for short
PISMath ratios
PISJumbles
PISLetters before rhos
PISMagnum and others: Abbr.
PISFraternity letters
PISSymbols used in angle measurement
PISDicks
PISLetters on some college buildings
PISGeometry symbols
PISSome tails, for short
PISGreek letters before rhos
PISRho preceders