noun:

• dusky thrush (Turdus naumanni) - obscure term - Kantō dialect ➜ 鶫

noun:

• curlew (any bird of genus Numenius) - obscure term

noun:

• any duck with white specula (bright patches on the wings) - obscure term ➜ 羽白

noun:

• star (white patch on the forehead of a horse) - obscure term ➜ 星月

noun:

• fibrinogen - obscure term ➜ フィブリノーゲン

noun:

• acetylcellulose - obscure term ➜ 酢酸セルロース

noun:

• cellulose acetate - obscure term ➜ 酢酸セルロース

noun:

• cellulose nitrate - obscure term ➜ ニトロセルロース

noun:

• cellulose nitrate - obscure term ➜ ニトロセルロース

noun:

• parathormone (parathyroid hormone) - obscure term ➜ 副甲状腺ホルモン

noun:

• Graafian follicle - obscure term ➜ グラーフ卵胞

noun:

• gonadotropic hormone (gonadotrophic) - obscure term ➜ 性腺刺激ホルモン

noun:

• anger veins (stylised X mark typically shown on forehead) - manga slang - obscure term

noun:

• trout - obscure term
• Japanese dace (Tribolodon hakonensis) ［はらあか］
• Nibe croaker (Nibea mitsukurii) ［はらか］

noun:

• common Douglas fir (Pseudotsuga menziesii) - obscure term ➜ 米松

noun:

• incarcerating a criminal in a temple as a form of punishment (popular during the latter Muromachi and Azuchi-Momoyama periods) - obscure term ➜ 寺入り

noun:

• blue mackerel (Scomber australasicus) - obscure term ➜ 胡麻鯖

noun:

• eastern pale clouded yellow (butterfly, Colias erate) - obscure term ➜ 紋黄蝶

noun:

• Hegira; Hejira; Hijra - obscure term ➜ ヒジュラ

noun:

• vegetable-based food (incl. nuts, berries, etc., but excl. all meat and fish) - obscure term ➜ 生臭物

noun:

• ubame oak (Quercus phillyraeoides) - obscure term ➜ 姥目樫

noun:

• ping pong dash; ding dong dash - obscure term ➜ ピンポンダッシュ

noun:

• grass sickle - obscure term ➜ 草刈鎌

noun:

• lichen - obscure term ➜ 地衣類

noun:

• fragrant oil; essential oil - obscure term ➜ 精油