four-o'clock family
- noun
- /fɔr əˈklɒk ˈfæmɪli/
- Specialized
- Members of the four-o'clock family often have brightly colored flowers that open in the afternoon.
Examples
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The four-o'clock family contains about 30 genera of flowering plants found in tropical and subtropical regions.
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Scientists recently discovered a new genus within the four-o'clock family.
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The four-o'clock family includes many vibrant flowers.
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Do you know about the four-o'clock family of plants?
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Plants in the four-o'clock family are well-known for their colorful blooms that attract bees and butterflies.
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Many gardeners appreciate the four-o'clock family for their ability to thrive in warm climates.
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The four-o'clock family includes species that can grow as vines or shrubs, adding diversity to gardens.
Synonyms
A family of flowering plants that includes the four o'clock flower
Surface Forms
Morphology
four-o'clock + family
Although 'family' transparently signals a group, the first element 'four‑o'clock' is a lexicalized common name for a plant and is not interpretable as 'a group of flowering plants' from its literal parts ('four' + 'o'clock'). The botanical sense requires specific lexical/taxonomic knowledge rather than composition from the constituents, so a B1 learner who only knows the constituent words would not reliably derive the MWE meaning.
Etymology
Four-o'clock family comes from a garden plant called four-o'clock whose flowers open in the late afternoon around four o'clock. So the family name was used for a group of related flowering plants, which is why it refers to many plants that open their flowers in the afternoon.