1. Orchid with spikes of many fragrant white flowers on erect leafy stems; of wet or boggy ground through most of the West and northern North America
   - bog rein orchid, Habenaria dilatata

Type of: rein orchid, rein orchis

• semibreve
• semicentenary
• semicentennial
• semicircle
• semicircular
• semicircular arch
• semicircular canal
• semicolon
• semicoma
• semicomatose
• semiconducting
• semiconducting material
• semiconductive
• semiconductor
• semiconductor device
• semiconductor diode
• semiconductor unit
• semiconscious
• semiconsciousness
• semidark
• semidarkness
• semidesert
• semidetached
• semidiameter
• semiempirical