shishamoEtymologyBorrowed from Japanese 柳葉魚 (shishamo, literally “willow leaf fish”), ultimately from Ainu スサㇺ (susam).shishamo means spirinchus lanceolatus, a Japanese smelt. Lexicurio rates it Sui generis — a strength score of 91 out of 100.nounSpirinchus lanceolatus, a Japanese smelt.