stoma

noun 0.618

strobila

noun 0.578

stromatolite

noun 0.565

stratum

noun 0.561

stem

noun 0.556

pleroma

noun 0.555

stratosphere

noun 0.553

granum

noun 0.550

struma

noun 0.550

stele

noun 0.547

sterol

noun 0.538

stratus

noun 0.536

interstitium

noun 0.535

chloroplast

noun 0.532

strum

noun 0.531

thylakoid

noun 0.528

stria

noun 0.528

plastid

noun 0.526

strophe

noun 0.523

ground tissue

noun 0.521

lumen

noun 0.517

plasm

noun 0.516

cytoplasm

noun 0.516

stamen

noun 0.515

chromoplast

noun 0.515

stolon

noun 0.514

starch

noun 0.513

phloem

noun 0.509

stator

noun 0.506

strobe

noun 0.505

stola

noun 0.504

stot

noun 0.502

protoplasm

noun 0.500