1. (biology) an artificial taxonomic category for organisms of which the true relationships are obscure

Type of: family

• ravel out
• ravelin
• raveling
• ravelling
• raven
• ravenala
• Ravenala madagascariensis
• ravener
• ravening
• Ravenna
• Ravenna grass
• ravenous
• ravenously
• ravenousness
• raver
• Ravi Shankar
• ravigote
• ravigotte
• ravin
• ravine
• raving
• raving mad
• ravingly
• ravioli
• ravish