Sinus is valid Scrabble Word

Is sinus a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is sinus valid Words with Friends?
Words with Friends YES

5 letters word
5 points in Scrabble
7 points in WWF

Definitions for SINUS in dictionary:

NOUN:

a cranial cavity
a cavity within a bone or other tissue, especially one in the bones of the face or skull connecting with the nasal cavities.
an irregular venous or lymphatic cavity, reservoir, or dilated vessel.
an infected tract leading from a deep-seated infection and discharging pus to the surface.
a rounded notch between two lobes on the margin of a leaf or petal.
relating to or denoting the sino-atrial node of the heart or its function of regulating the heartbeat
hollow space in a bone, esp an air passage opening into the nose
An opening; a hollow; a bending.
A bay of the sea; a recess in the shore.
A cavity; a depression.

A cavity in a bone or other part, either closed or with a narrow opening.
A dilated vessel or canal.
A narrow, elongated cavity, in which pus is collected; an elongated abscess with only a small orifice.
A depression between adjoining lobes.
an abnormal passage leading from a suppurating cavity to the body surface
any of various air-filled cavities especially in the bones of the skull
a wide channel containing blood; does not have the coating of an ordinary blood vessel

Words related to SINUS

sinus5 sinuses7 sinuslike13

How to use SINUS in a sentence

It passes through the Lacus Lemanus, Lake of Geneva, and flows with a swift and rapid current in a southern direction into the Sinus Gallicus, or Gulf of Lyons.
It consists in rolling portions of the dressing into little cylinders, wrapped round with thin paper, and introduced into a sinus or other position where considered necessary.
The horn of the wall is then sawed through in a direct line from the coronary margin to the solar edge, the saw-line running exactly over the seat of the sinus.
In this way the sinus is completely destroyed, and from end to end converted into an open wound.
No matter in what position the sinus is, whether at the extreme anterior portion of the coronet, or whether in the region of the heels, it is to be thoroughly opened up.
Immediately over the sinus, and for a short distance on either side of it, the horn is stripped away to the sensitive structures.
Wherever a sinus has existed in it, it is to be carefully scraped, and all dead portions of tissue removed.
Fruit-dots near the midvein, the sides of the sinus often overlapping.
The important maxillary sinus cannot well be shown.
The corner of the hat-box struck me just below the second frontal sinus, and I fainted away.

The flowers stand on very short pedicules, arising from the sinus of the leaves, which are exactly like rosemary, only less.

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