pollen grain

noun 0.711

pollen

noun 0.705

pollen parent

noun 0.661

germ tube

noun 0.613

pollinium

noun 0.605

pollination

noun 0.595

tubule

noun 0.578

tube

noun 0.574

seminiferous tubule

noun 0.562

pollinator

noun 0.548

test tube

noun 0.548

micropyle

noun 0.546

fluorescent tube

noun 0.545

microtubule

noun 0.543

microspore

noun 0.536

anther

noun 0.536

phototube

noun 0.533

pollinosis

noun 0.526

tuber

noun 0.522

tube site

noun 0.518

nanotube

noun 0.517

electron tube

noun 0.515

stamen

noun 0.514

polyp

noun 0.513

photomultiplier tube

noun 0.511

phloem

noun 0.507

ovule

noun 0.506

carpel

noun 0.505

pistil

noun 0.504

tuberose

noun 0.501

archegonium

noun 0.501