Meanings

servo

servo-brake

lever mechanism (in bicycle brakes, metal shears, etc.)

servo unit

high magnification (telescope, etc.)

electron multiplier

bluestreak cleaner wrasse (Labroides dimidiatus)

genome doubling

bid-to-cover ratio

win worth 24000 points (or, if dealer, 36000 points)

win worth 16000 points (or, if dealer, 24000 points)

extremely healthy

payment of a sum twice the original

job opening-to-application ratio

same size

times

double-height size (of text)

double-size character

ratio of job openings to job applicants

four times (as much)