Webster's Revised Unabridged Dictionary · 1913

Strain

Strain , noun

[See Strene.]

1.
Race; stock; generation; descent; family.
He is of a noble strain. — Shakespeare
With animals and plants a cross between different varieties, or between individuals of the same variety but of another strain, gives vigor and fertility to the offspring. — Darwin
2.
Hereditary character, quality, or disposition.
Intemperance and lust breed diseases, which, propogated, spoil the strain of nation. — Tillotson
3.
Rank; a sort.
The common strain. — Dryden
4.
(Horticulture) A cultural subvariety that is only slightly differentiated.

Strain , transitive verb

[Old French estraindre, estreindre, French étreindre, Latin stringere to draw or bind tight; probably akin to Greek {not transcribed} a halter, {not transcribed} that which is squeezwd out, a drop, or perhaps to English strike. Compare Strangle, Strike, Constrain, District, Strait, a. Stress, Strict, Stringent.]

1.
To draw with force; to extend with great effort; to stretch; as, to strain a rope; to strain the shrouds of a ship; to strain the cords of a musical instrument.
To strain his fetters with a stricter care. — Dryden
2.
(Mechanics) To act upon, in any way, so as to cause change of form or volume, as forces on a beam to bend it.
3.
To exert to the utmost; to ply vigorously.
He sweats, Strains his young nerves. — Shakespeare
They strain their warbling throats To welcome in the spring. — Dryden
4.
To stretch beyond its proper limit; to do violence to, in the matter of intent or meaning; as, to strain the law in order to convict an accused person.
There can be no other meaning in this expression, however some may pretend to strain it. — Swift
5.
To injure by drawing, stretching, or the exertion of force; as, the gale strained the timbers of the ship.
6.
To injure in the muscles or joints by causing to make too strong an effort; to harm by overexertion; to sprain; as, to strain a horse by overloading; to strain the wrist; to strain a muscle.
Prudes decayed about may track, Strain their necks with looking back. — Swift
7.
To squeeze; to press closely.
Evander with a close embrace Strained his departing friend. — Dryden
8.
To make uneasy or unnatural; to produce with apparent effort; to force; to constrain.
He talks and plays with Fatima, but his mirth Is forced and strained. — Denham
The quality of mercy is not strained. — Shakespeare
9.
To urge with importunity; to press; as, to strain a petition or invitation.
Note, if your lady strain his entertainment. — Shakespeare
10.
To press, or cause to pass, through a strainer, as through a screen, a cloth, or some porous substance; to purify, or separate from extraneous or solid matter, by filtration; to filter; as, to strain milk through cloth.
Collocations (2)
To strain a point , to make a special effort; especially, to do a degree of violence to some principle or to one's own feelings.
To strain courtesy , to go beyond what courtesy requires; to insist somewhat too much upon the precedence of others; -- often used ironically. — Shakespeare

Strain (strān) , intransitive verb

1.
To make violent efforts.
Straining with too weak a wing. — Pope
To build his fortune I will strain a little. — Shakespeare
2.
To percolate; to be filtered; as, water straining through a sandy soil.

Strain , noun

1.
The act of straining, or the state of being strained.
(a)
A violent effort; an excessive and hurtful exertion or tension, as of the muscles; as, he lifted the weight with a strain; the strain upon a ship's rigging in a gale; also, the hurt or injury resulting; a sprain.
Whether any poet of our country since Shakespeare has exerted a greater variety of powers with less strain and less ostentation. — Landor
Credit is gained by custom, and seldom recovers a strain. — Sir W. Temple
(b)
(Mechanics Physics) A change of form or dimensions of a solid or liquid mass, produced by a stress. — Rankine
2.
(Music) A portion of music divided off by a double bar; a complete musical period or sentence; a movement, or any rounded subdivision of a movement.
Their heavenly harps a lower strain began. — Dryden
3.
Any sustained note or movement; a song; a distinct portion of an ode or other poem; also, the pervading note, or burden, of a song, poem, oration, book, etc.; theme; motive; manner; style; also, a course of action or conduct; as, he spoke in a noble strain; there was a strain of woe in his story; a strain of trickery appears in his career.
A strain of gallantry. — Sir W. Scott
Such take too high a strain at first. — Bacon
The genius and strain of the book of Proverbs. — Tillotson
It [Pilgrim's Progress] seems a novelty, and yet contains Nothing but sound and honest gospel strains. — Bunyan
4.
Turn; tendency; inborn disposition. Compare 1st Strain.
Because heretics have a strain of madness, he applied her with some corporal chastisements. — Hayward