(Internet slang) Short for 胸が熱くなる.

(idiomatic) a more powerful person partners with a less powerful person, such as for practicing

(idiomatic) to be unsettled, to be uneasy

to have a lump in one's throat, stomach full of food / (idiomatic) to be emotionally moved

(anatomy, uncommon, dated) cephalothorax

(slang) an unexpected (intentional or accidental) exposure of a woman's breasts

(anatomy) a sternocleidomastoid muscle

muscle, tendon / vein, artery / reason, logic / plot, storyline / counter for long thin things; counter for roads or blocks when giving directions / lineage, descent

Counter for long, thin things.

(ophthalmology) Alternative form of 硝子体