1. Pertaining to flowerless plants (ferns or mosses) in which growth occurs only at the tip of the main stem
   - acrogenous

See also: acrogen

• rising
• rising prices
• rising slope
• rising tide
• rising trot
• risk
• risk arbitrage
• risk capital
• risk of exposure
• risk of infection
• risk taker
• risk-free
• riskily
• riskiness
• riskless
• risklessness
• risky
• risky venture
• risotto
• risqué
• Riss glaciation
• tabula rasa
• tabular
• tabular array
• tabular matter