noun:

• Megachasmidae; family whose sole member is the rare deep water megamouth shark

expression:

• Happy events are often accompanied by difficulties; Unsullied joy is rare - four character idiom

noun:

• unusual flower; rare flower

noun:

• unusual fruit; rare fruit

noun:

• unexpected (but welcome) visitor; rare guest

noun:

• unusual candy; rare sweet

noun:

• noble gases; rare gases

noun:

• unusual item; rare treasure

expression:

• emergency; accident; rare possibility; unexpected occurrence

expression:

• unlikely event; rare occurrence - idiom - four character idiom - Buddhism term ➜ 盲亀の浮木

expression:

• unlikely event; rare occurrence - idiom - Buddhism term

expression:

• You must seize every golden opportunity; Strike while the iron is hot; When you find a rare good buy, seize upon it for a future sale at a much higher price - four character idiom

noun:

• Megachasma (sole genus of the rare deep water megamouth shark in the family Megachasmidae)

noun:

• artificial food (fabricated to resemble rare or expensive foods)

noun:

• Ganges shark (Glyphis gangeticus, rare species of fresh water requiem shark that dwells in the rivers of India)

noun:

• moyamoya disease (rare, progressive cerebrovascular disorder caused by blocked arteries in the basal ganglia)

noun:

• Oncorhynchus nerka kawamurae (rare Japanese subspecies of sockeye salmon)

noun:

• udumbara (mythical Indian plant often identified with the cluster fig, Ficus glomerata)
• something very rare (from the legend that it flowers once in 3000 years)
• Japanese fiber banana flower ➜ 芭蕉
• green lacewing eggs ➜ 草蜉蝣

noun:

• variant edition (of a book); alternative version; different manuscript
• strange book; rare book; unique book ➜ 珍本

noun:

• the hundredth year
• out of luck; (at the) end of one's rope
• rare chance; unusually good fortune