noun:

• nut (on the head of a shamisen, supporting the second and third strings) - obscure term ➜ 上駒

noun:

• small mochi placed on top of a big mochi
• two things heaped together

noun:

• ivy (esp. Boston ivy, Parthenocissus tricuspidata) - archaism ➜ 蔦
• jiaogulan (species of herbaceous vine; Gynostemma pentaphyllum) ➜ 甘茶蔓

noun:

• laser-assisted in-situ keratomileusis (type of laser eye surgery); LASIK

noun:

• sun spider (any arachnid of order Solifugae); wind scorpion; camel spider; solpugid

noun:

• Eleocharis kuroguwai (species of spikerush)
• Chinese water chestnut (Eleocharis dulcis var. tuberosa) ➜ 大黒慈姑

noun:

• ijtihad (use of discretionary judgement in deducing a law not specified in scripture) - From Arabic

noun:

• frogfish (any fish of family Antennariidae, esp. the striated frogfish, Antennarius striatus) - sensitive ➜ 蛙鮟鱇

noun:

• archerfish (any fish of family Toxotidae, esp. the banded archerfish, Toxotes jaculatrix)

noun:

• dragonet (any fish of family Callionymidae, esp. Richard's dragonet, Repomucenus richardsonii)

adverbial noun / temporal noun:

• one season
• one year (esp. as an Edo-period duration of employment) ➜ 半季

noun:

• electric catfish (any species of family Malapteruridae, esp. species Malapterurus electricus) - obscure term ➜ 電気鯰

noun:

• frogfish (any fish of family Antennariidae, esp. the striated frogfish, Antennarius striatus)

noun:

• toadfish (any fish of family Batrachoididae, esp. the Pacuma toadfish, Batrachoides surinamensis)

expression:

• knowing what is right and not doing it is a want of courage - proverb

noun:

• style of drawing the human face, popular in the Heian period

noun / ~する noun:

• tucking up the sleeves of a kimono with a tasuki ➜ 繦

noun:

• lunula (white crescent-shaped area at the base of a nail); nail moon

noun / ~する noun:

• forced relocation of a daimyo to a different domain by the Edo shogunate

noun:

• whitetip reef shark (Triaenodon obesus, species of Indo-Pacific requiem shark) ➜ ホワイトチップリーフシャーク

noun:

• cutting off the leg at the knee (form of punishment in ancient China) - archaism ➜ 五刑

noun:

• cutting off the leg at the knee (form of punishment in ancient China) - archaism - obscure term ➜ 剕

noun:

• speckled butterflyfish (Chaetodon citrinellus, species of the Indo-Pacific); citron butterflyfish

noun:

• Pacific longnose chimaera (Harriotta raleighana, species of deep water cartilaginous fish); narrownose chimaera

noun:

• Pacific spookfish (Rhinochimaera pacifica, species of deep water cartilaginous fish); deep-sea chimaera