Saccharomycetes (n.)
definition: A family of fungi consisting of the one genus Saccharomyces.

Saccharomycetes is a 15 letter word that begins with an S and ends in an S

Salsamentarious (a.)
definition: Salt; salted; saline.

Salsamentarious is a 15 letter word that begins with an S and ends in an S

Scatter-brained (a.)
definition: Giddy; thoughtless.

Scatter-brained is a 15 letter word that begins with an S and ends in a D

Scheele's green
definition: See under Green.

Scheele's green is a 15 letter word that begins with an S and ends in an N

Scissors-tailed (a.)
definition: Having the outer feathers much the longest
The others decreasing regularly to the median ones.
Scissors-tailed is a 15 letter word that begins with an S and ends in a D

Scutelliplantar (a.)
definition: Having broad scutella on the front
And small scales on the posterior side of the tarsus; -- said of certain birds.
Scutelliplantar is a 15 letter word that begins with an S and ends in an R

Scutibranchiata (n.)
definition: An order of gastropod Mollusca having a heart with two auricles and one ventricle. The shell may be either spiral or shieldlike.

Scutibranchiata is a 15 letter word that begins with an S and ends in an A

Scutibranchiate (a.)
definition: Having the gills protected by a shieldlike shell; of or pertaining to the Scutibranchiata.

Scutibranchiate is a 15 letter word that begins with an S and ends in an E

Scutibranchiate (n.)
definition: One of the Scutibranchiata.

Scutibranchiate is a 15 letter word that begins with an S and ends in an E

Seek-no-further (n.)
definition: A kind of choice winter apple
Having a subacid taste; -- formerly called go-no-further.
Seek-no-further is a 15 letter word that begins with an S and ends in an R

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