一

tanka; 31-mora Japanese poem

Chemistry

monounsaturated fatty acid

118 (maritime emergency telephone number in Japan)

Electronics

single-element relay

description from one perspective

general attack; all-out attack; attack on all fronts; onslaught; fusillade

Computing

simultaneous transmission; sending to multiple recipients

time to oneself; me time

time to oneself; me time

one metropolis and three prefectures (i.e. the Tokyo area: Tokyo, Kanagawa, Chiba and Saitama)

Psychiatry

primary delusion

fire crab (Pyromaia tuberculata)

Idiomatic expression

to retaliate; to return a blow; to strike back (at); to retort

21st century

Usu. followed by 育てる

single-handedly (usu. of a female raising children); on one's own; as a single mother

Usu. followed by 育てる

single-handedly (usu. of a male raising children); on one's own; as a single father

Pyrolaceae (family of evergreen perennial herbs)

single quotation marks

one-time payment; lump-sum payment

only once; just once

first secretary (of a communist party)

Chemistry

mercury(I) chloride; calomel; mercurous chloride

Idiomatic expression

strained back; lower back pain

With neg. sentence

(not) a single one; (not) any; (not) at all; (not) in the slightest; (not) the least bit