Meanings

unpaired electron

allelic character

pair production

electron pair

quid pro quo sexual harassment

good contrast

countermeasure

target (e.g. of a marketing campaign)

contra account

to face each other

to face each other

logarithmic graph paper

logarithmic scale

Allied Council for Japan

contrastive linguistics

cultural relativism

one-to-many

many-to-many

match

antipodal