Sadhaka
Sadhaka is one of the five-pitta subdoshas that located in the heart and responsible for intelligence, knowledge, memory, enthusiasm and consciousness. 

Samadhi
It is the stage of self realization where a person achieve harmony, calmness, concentration, awareness and mastery over mind, desires and body.

Samana vayu
It means equalized movement of air. It is a subdosha of vata that has the function of digestion of food, separation of waste products, regulation of composition of body fluids, body temperature and the movement of pitta and kapha.

Samkhya
This word can be explained as "discriminative knowledge" and "enumeration". It is one of the schools of Hindu philosophy founded by sage Kapila. This school provides a systematic account of cosmic evolution according to twenty-five categories.

Samskara
The impression imprint in ones mind followed by any experience, or some incident of the past consciously or unconsciously leaves samskara.

Sandhaniya
The literal meaning of this word isto join. It is used for the herbs that helps the body in healing of broken bones and torn ligaments and in uniting fractured and divided body parts.

Sarasvati
Hindu goddess of knowledge and learning. In Hindu mythology she is represented as the wife of Brahma.

Sat-Chid-Ananda
The term used for supreme god. It means existence, reality, pure consciousness, the spirit, brahman, a being, bliss and delight.

Sattva
It means purity. It is first among the three gunas, and present the purest aspect and the conscious principle characterized by purity, lightness, harmony and the creation of pleasure and joy.

Sattvic
One who pertain the qualities of sattva.

Shakha
It is a Sanskrit word meaning extremity.

Shirah
In Sanskrit language this word means head or skull.

Shleshaka
It is a subdosha of Kapha that locates in the joints of the body. It is viscous and oily and has the function to protect the bony joints by keeping them firm and united. It also ensures the smooth functioning of bones.

Shodan
One of the cleansing methods used for body purification and rejuvenation.

Shukra
It is the last of the seven dhatus, the semen or the male reproductive tissue that perform the major functions of producing sensation of ejaculation, fondness and strengthens the body.

Skandhas
In Sanskrit it means a heap, pile or aggregate. They are important tools for understanding the Buddhist doctrine of no self as they include with them all transitory, impermanent phenomena.

Smriti
A Sanskrit word that means the memory or the ability to recall.

Srotas
The literal meaning of the term is source. In Ayurveda it is used for a canal that transport nutritients in the body. All the dhatus have their own minute channels or srotas made up of extremely fine pores, originating from the heart cavity, and spreading throughout the body; they transport the nutrient fluid to all parts of the body for nourishment and growth.

Sukha
In Sanskrit it means happiness or pleasure or delight. Ayurveda assumes that Vata persons' experience of sukha is boring as in vata, sukha is superficial, physical, and shaky. Pitta sukha involves solving problems, understanding, and solving puzzles whereas Kapha sukha is passive, involving napping, eating or sitting.

Surya
The sun.

Sushumna Nadi
Nadi is the subtle energy field which controls the movements and configurations of conscious beings. Sushumna nadi starts from the first chakra and extends up to the crown chakra.

Sabda
Sound, tone, voice, words.

Sada
Six.

Sadavidha
Six types.

Sakuna
Relating to birds or having the nature or characteristics of a bird.

Salakya tantra
Science using probes or cylindrical sticks for investigation and treatments, or a branch that deals with eyes, ears, nose and throat.

Salya tantra
A Sanskrit term used refers to Science of surgery.

Samhita
Collection of verses, texts that are methodically arranged.

Samprapti
Pathogenesis, the complete route of manifestation of disease.

Samsarjana (karma)
Diets and activities practiced after a treatment to get back to normal routine and food.

Samyaka
Accurate, precise, correct, truthful.

Samyoga
Combination, connection, conjunction, amalgamation.

Sancaya
To Accumulate, to collect, to gather.

Sandra
Dense, thick, solid.

Sankhapuspi
An herb used as a tonic for nervous system. Known for improving memory. The Latin name of the herb is Convolvulus pluricaulis.

Sanskrit
Purified, sanctified, the language used in Vedic age, also known as language of god.

Sapta
Seven.

Sapta-dhatu
The seven dhatus or constitutional elements or tissues of the body.

Sara
Liquid, fluid, moving.

Sarira
Body, physical body.

Sarpa
A Sanskrit word means Snake or serpent.

Sarpagandha
An herb highly useful for lowering high blood pressure. The Latin name of the herb is Rouwolfia serpentina.

Sarvangasana
A yoga posture.

Savasana
Dead body posture or posture for complete rest or relaxation.

Silajita
A black sticky mineral that leaks out of some mountains.

Shira
Any tubular vessel in the body - a vein, nerve or artery.

Sirodhara
A popular Ayurveda procedure that helps to calm the mind and pacify vata in the central nervous system. In this process special herbal oils or any other medicated liquids are poured on forehead from a special pot. 

Sirsasana
A yoga posture known as Head stand posture. 

Shita
A Sanskrit word means Cold, chilly, frigid.

Slakshana
Smooth, polished, soft, tender.

Slesaka
Attaching, connecting.

Snehana
Lubricating, anointing, rubbing with oil.

Snigdha
Sticky, unctuous, smooth, adhesive.

Shodhana
Cleaning, purifying, refining.

Shodhana Basti
A therapeutic administration of medicated decoctions that purifies the colon of toxic substances and waste products.

Shodhana Chikitsa
One of the two primary methods of disease management that primarily focus on the elimination of the source of disease.

Sparsa
Touching, sense of touch.

Sringa
Horn.

Srvanam
The act of hearing, acquiring knowledge by hearing.

Sthana samsraya
Location in a place, relocation of dosas.

Sthira
That can not be moved, firm, hard, solid, strong, immovable, fixed.

Sthula
Large, thick, big, gross, fat, stout, plump.

Saindhava
Black salt.

Samsarajana krama
The graded administration of diet. One of the post-procedures of Panchakarma that strengthens the incapacitated digestive fire.

Shamana Basti
A therapeutic application of medicated oil or decoction through the rectum in order to reduce irritation in the colon.

Shamana Chikitsa
One of the two primary methods of disease management that only concentrates on palliation of the symptoms of disease.

Shamana Nasya
A therapeutic administration of herbal or medicated oil into the nostrils to soothe the sinus zone. 

Shiro Basti
An Ayurvedic treatment in which medicated oils are administered to head to improve prana and sensory functioning.

Surya Namaskar
Sun salutation, a set of different yoga postures.

Sushruta
One of the main scholars of Ayurvedic science, Founder of Sushrita school of Ayurveda philosophy that focus on surgical procedures and purification of the blood.

Sushruta Samhita
One of the main text of Ayurveda written by Sushruta.