This is the 2265th most frequent Russian word.
зерновых
"Grain" or "cereal crops."
The word 'зерновых' refers to grain crops, as it's used in the context of agriculture.
На поле созрело много зерновых.
A lot of grain crops have ripened in the field.
Here, 'зерновых' indicates various types of grains used as food products.
Диета включает несколько видов зерновых.
The diet includes several types of grains.
In this sentence, 'зерновых' denotes grain-derived products intended for trade or export.