horsemeat
Word family
Synonym discussion
Sense: noun/1
Horsemeat and horse meat are spelling variants of the same idea — the one-word form is more common in compound modifiers (horsemeat products) while the two-word form appears in literal contexts (the meat of a horse). Neither implies a difference in meaning or register. Equine meat is a formal, almost scientific label used in food-industry regulations or nutrition discussions; a typical English speaker would not say 'equine meat' in daily conversation.
Common collocations
Etymology
A compound formed in English from horse (Old English hors) and meat (Old English mete, meaning 'food' in general). The word originally meant any food given to horses, but by the 1800s it had shifted to mean the flesh of a horse eaten by people — a reversal of the earlier sense.