What does Sex stand for?

Sextans - Constellation

Sextet (SAUS)

Shipment Exception Code - Military (AFIT)

Sign Extend - Computer science (NHD)

Simple Editor for X - Text editor

Size Exclusion - Analytical chemistry

Sodium Ethyl Xanthate - Organic chemistry

Software Exchange - Computer science (NHD)

Solar Eclipse Experiment (SAUS)

Summer Experiment Group - Summer work for engineering undergraduates

Super Elite eXports

Sexual (DAVI)