(idiomatic) One's innermost private feelings.

A device that transfers thermal energy between spaces, usually between an enclosed space and the outdoors.

Characterized by vague or confused thinking: foolish, dull-witted, semi-conscious.

(idiomatic) To be particularly, especially uncannily, observant; a perceived ability to see in all directions at once.

Without sympathy, feeling or compassion; callous or heartless

(obsolete) Da Costa's syndrome, a disorder of the heart related to combat.

With the head in front; headlong. / Rashly; precipitately; without deliberation; hastily.

With the head in front; headlong.

Adjectival or attributive form of angels dancing on the head of a pin.

(figuratively) The subject of arcane intellectual speculation; used as an example subject of enquiry the pursuit of which is of no value.