speciation.noun
basically an evolutionary term about the process by which a new species is made; the evolutionary formation of new biological species, usually by the division of a single species into two or more genetically (relating to genetics or genes) distinct ones
speciational.adjective

sooth.adjective
real; true; soft; smooth
sooth.noun
truth; reality
soothly.adverb

soothe, soothed, soothing, soothes.verbs
transitive verb use.to calm or placate; to ease or relieve (pain, for example)
intransitive verb use.to bring comfort, composure, or relief
soother.noun

structure.noun
something made up of a number of parts that are held or put together in a particular way; the way in which parts are arranged or put together to form a whole; the interrelation or arrangement of parts in a complex entity (political structure; plot structure); something constructed
Biology-– the arrangement or formation of the tissues, organs, or other parts of an organism
structure, structured, structuring, structures.transitive verbs

solemn.adjective
deeply earnest, serious, and sober; somberly or gravely impressive; invoking the source of scared power; sacred (a solemn vow); gloomy; somber
solemnly.adverb
solemnness.noun

solemnity.noun, plural.solemnities
the quality or condition of being solemn; a solemn observance or proceeding

semipermeable.adjective
partially permeable; allowing passage of certain, especially small, molecules or ions but acting as a barrier to others; used of biological and synthetic.membranes
semipermeability.noun

spectroscope.noun
an instrument for producing and observing spectra
spectroscopic or spectroscopical.adjective
spectroscopically.adverb

spectrometer, spectrometry.noun
a spectroscope equipped with scales for measuring wavelengths or indexes of refraction
spectrometric.adjective

substance.noun
heart; depth of meaning; that which is solid and practical in character, quality, or importance; that which has mass and occupies space; matter; a material of a particular kind or constitution; essential nature; essence

substantial.adjective
of, relating to, or having substance; material; true or real; not imaginary; solidly built; strong; ample; sustaining (a substantial breakfast); considerable in importance, value, degree, amount, or extent (won by a substantial margin); possessing wealth or property; well-to-do
substantial.noun
an essential; a solid thing
substantiality or substantialness.noun
substantially.adverb

sugar.noun
any of a class of water soluble crystalline carbohydrates, including sucrose and lactose, having a characteristically sweet taste and classified as monosaccharides, disaccharides, and trisaccharides

saccharide.noun
any of a series of compounds of carbon, hydrogen, and oxygen in which the atoms of the latter two elements are in the ratio of 2:1, especially those containing the group C₆H₁₀O₅-(6 parts {molecules} carbon, 10 parts hydrogen, 5 parts oxygen)

social.adjective
inclined to seek out or enjoy the company of others; sociable

sociable.adjective
fond of the company of others; gregarious; marked by or affording occasion for agreeable conversation and conviviality; social; pleasant, friendly, and affable; gracious
sociable.noun
a social
sociableness.noun
sociably.adverb

society.noun,.plural.societies
the totality of social relationships among human beings; a group of human beings broadly distinguished from other groups by mutual interests, participation in characteristic relationships, shared institutions, and a common culture (the women's society contributed much to helping less fortunate children); an organization or association of persons engaged in a common profession, activity, or interest (a folklore society; a society of bird watchers)

societal.adjective
of or relating to the structure, organization, or functioning of society
societally.adverb

squabble, squabbled, squabbling, squabbles.intransitive verbs
to engage in a disagreeable argument, usually over a trivial matter; wrangle; argue
squabble.noun
a noisy quarrel, usually about a trivial matter
squabbler.noun

slope, sloped, sloping, slopes.verbs
intransitive verb use.to diverge from the vertical or horizontal; incline.(a roof that slopes; slant; to move on a slant; ascend or descend.(sloped down the trail
transitive verb use.to cause to slope (sloped the path down the bank of the hill)
slope.noun
an inclined line, surface, plane, position, or direction; a stretch of ground forming a natural or artificial incline (ski slopes); a deviation from the horizontal
slope.noun
slopingly.adverb

solitary.adjective
existing, living, or going without others; alone: a solitary traveler; alone
solitary.noun, plural.solitaries
a person who lives alone; a recluse;
solitarily.adverb
solitariness.noun

secluded.adjective
removed or remote from others; solitary; screened from view; sequestered
secludedly.adverb
secludedness.noun
seclude, secluded, secluding, secludes.transitive verbs
to set or keep apart, as from social contact with others; isolate; to screen from view; make private

seclusion.noun
the act of secluding; the state of being secluded; solitude; a secluded place or abode