(archaic or obsolete) The indoor layout or plan of a castle.

(pharmacology) Used to form names of estrogens.

(biology) Alternative form of estro-. / (pharmacology) Used to form names of estrogens.

plural of estre

simple past tense and past participle of estrange

Having become a stranger, of one who formerly was close, as a relative, friend, lover, or spouse.

(transitive) To cause to feel less close or friendly; alienate. To cease contact with (particularly of a family member or spouse, especially in form estranged).

(biochemistry, steroids) Any of a group of steroids that are secreted by the ovaries and function as female sex hormones.

The act of estranging; the act of alienating; alienation. / The state of being alien; foreign, non-native.

(law) An animal that has escaped from its owner; a wandering animal whose owner is unknown. An animal cannot be an estray when on the range where it was raised, and permitted by its owner to run. A lost animal whose owner is known to the party at hand is not an estray.