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  2. Fist - Wikipedia

    en.wikipedia.org/wiki/Fist

    A fist is the shape of a hand when the fingers are bent inward against the palm and held there tightly. To make or clench a fist is to fold the fingers tightly into the center of the palm and then to clamp the thumb over the middle phalanges; in contrast to this "closed" fist, one keeps the fist "open" by holding the thumb against the side of the index finger.

  3. Claustrophobia - Wikipedia

    en.wikipedia.org/wiki/Claustrophobia

    It is triggered by many situations or stimuli, including elevators, especially when crowded to capacity, windowless rooms, and hotel rooms with closed doors and sealed windows. Even bedrooms with a lock on the outside, small cars, and tight-necked clothing can induce a response in those with claustrophobia.

  4. Penile–vaginal intercourse - Wikipedia

    en.wikipedia.org/wiki/Penile–vaginal_intercourse

    In a study from 1993, the mean value was given as 9.2 cm, in a study from 2006 only 6.27 cm with a variation of the lengths between 4.1 and 9.5 cm. [71] [72] If the woman is not sufficiently aroused with a deep penetration the penis bumps against the cervix causing pain. If the stretching capacity of the vagina is exceeded by a too large penis ...

  5. Vaginismus - Wikipedia

    en.wikipedia.org/wiki/Vaginismus

    In second-degree, the spasm is present but maintained throughout the pelvis even with reassurance. In third-degree, the person elevates the buttocks to avoid being examined. In fourth-degree (also known as grade 4) vaginismus, the severest form, the person elevates the buttocks, retreats, and tightly closes the thighs to avoid examination.

  6. Tightness of measures - Wikipedia

    en.wikipedia.org/wiki/Tightness_of_measures

    If a tight collection consists of a single measure , then (depending upon the author) may either be said to be a tight measure or to be an inner regular measure. If Y {\displaystyle Y} is an X {\displaystyle X} -valued random variable whose probability distribution on X {\displaystyle X} is a tight measure then Y {\displaystyle Y} is said to be ...

  7. Closure (container) - Wikipedia

    en.wikipedia.org/wiki/Closure_(container)

    A closure is a device used to close or seal a container such as a bottle, jug, jar, tube, or can. A closure may be a cap, cover, lid, plug, liner, or the like. [1] The part of the container to which the closure is applied is called the finish. [2]

  8. Tight closure - Wikipedia

    en.wikipedia.org/wiki/Tight_Closure

    A ring in which all ideals are tightly closed is called weakly -regular (for Frobenius regular). A previous major open question in tight closure is whether the operation of tight closure commutes with localization , and so there is the additional notion of F {\displaystyle F} -regular, which says that all ideals of the ring are still tightly ...

  9. Glottis - Wikipedia

    en.wikipedia.org/wiki/Glottis

    Sound production that involves moving the vocal folds close together is called glottal. [4] English has a voiceless glottal transition spelled "h". This sound is produced by keeping the vocal folds spread somewhat, resulting in non-turbulent airflow through the glottis. [ 4 ]