textbook [textbooks](formal manual of instruction) noun [UK: ˈteks.bʊk] [US: ˈtekst.ˌbʊk]John lost his French textbook. = John tappade bort sin franska lärobok.
lärobok i botanik substantiv {c}
botany(botanical treatise or study) noun [UK: ˈbɒ.tə.ni] [US: ˈbɑː.tə.ni]